MATH 2400, Analytic Geometry and Calculus 3
|
|
- Tyler McKenzie
- 6 years ago
- Views:
Transcription
1 MATH 2400, Analytic Geometry and Calculus 3 List of important Definitions and Theorems 1 Foundations Definition 1. By a function f one understands a mathematical object consisting of (i) a set X, called the domain of the function, (ii) a set Y, called the range of the function, (iii) a set Γ of pairs (x, y) of points x X and y Y, called the graph of the function, such that for each x X there is a unique f(x) Y with ( x, f(x) ) Γ. To better denote the function f one writes f : X Y, x f(x). Example 2. The following are examples of functions: (1) the identity function on a set X, id X : X X, x x, (2) the square-root function : 0, x x, (3) the exponential function exp :, x exp(x), (4) the distance functions from the origin δ : 2, (x, y) x 2 + y 2 and δ : 3, (x, y, z) x 2 + y 2 + z 2. Definition 3. Functions of the form f :, x mx, f : 2, (x, y) mx + ny, f : 3, (x, y, z) mx + ny + lz where m, n, l, are called linear. Functions of the form f :, x mx + a, where a, m, n, l, are called affine. f : 2, (x, y) mx + ny + a, f : 3, (x, y, z) mx + ny + lz + a Definition 4. A formula of the form T 1 (x 1,..., x n ) = T 2 (x 1,..., x n ) is called an equation. Here T 1 (x 1,..., x n ), and T 2 (x 1,..., x n ) are terms built from the variables x 1,..., x n, numerical constants, and functions. A tuple of numbers (a 1,..., a n ) is said to satisfy this equation if the equation is true when we perform the substitution x 1 = a 1,..., x n = a n. The graph of an equation is the set of all tuples that satisfy it. 1
2 Example 5. (1) The equation x 2 + y 2 + z 2 = 9 equates two terms T 1 and T 2. Here T 1 is a term built from the variables x, y and z, the squaring function, and addition, while T 2 is the constant 9. The triple (0, 3, 0) satisfies this equation, while (25, 10, 3) does not. In general, a triple (a 1, b 1, c 1 ) satisfies this equation if it is a point on the surface of a sphere of radius 3 centered at the origin. (2) Let f be a function. The graph of the equation y = f(x) is the same as the graph of f. To see this, let ( x, f(x) ) Γ be an element of the graph of f. Substituting these values into the equation y = f(x) yields the equation f(x) = f(x), which is true. Furthermore, suppose (x, y) satisfies y = f(x). Then (x, y) is an element of the graph of f. Please note well that not every equation has a graph that is the graph of a function. 2 Limits and Continuity Definition 6. The function f : 2 has the limit L at the point (a, b) 2, written if for every ε > 0 there is a δ > 0 such that lim f(x, y) = L, (x,y) (a,b) f(x, y) L < ε for all (x, y) (a, b) with d ( (x, y), (a, b) ) < δ. emark 7. Intuitively, lim (x,y) (a,b) f(x, y) = L means that f(x, y) is as close to L as we wish whenever the distance of the point (x, y) to (a, b) is sufficiently small. Definition 8. The function f : 2 is called continuous at the point (a, b) 2, if lim f(x, y) = f(a, b). (x,y) (a,b) The function f is said to be continuous on a region 2, if it is continuous at every point (a, b). 2
3 3 Vectors Definition 9. The n-dimensional euclidian space n is defined as the set of all n-tupels (x 1,...,x n ), where x 1,...,x n. Elements of n are also called vectors. If x = (x 1,..., x n ) and y = (y 1,...,y n ) are two elements of n, the displacement vector with tail x and tip y is the vector (y 1 x 1,...,y n x n ) n. The following provides several operations on vectors in n-dimensional euclidian space. Definition 10. The sum of two vectors x = (x 1,...,x n ) and y = (y 1,...,y n ) is defined as x + y = (x 1 + y 1,..., x n + y n ). If λ is a scalar (i.e. an element of ), and x = (x 1,...,x n ) a vector, the scalar multiple of x by λ is defined by λ x = (λx 1,...,λx n ). If x = (x 1,...,x n ) and y = (y 1,...,y n ) are two vectors, their dot product or scalar product is defined as the real number x y = x 1 y x n y n. If x = (x 1, x 2, x 3 ) and y = (y 1, y 2, y 3 ) are two vectors of 3, their cross product is defined by x y = (x 2 y 3 x 3 y 2, x 3 y 1 x 1 y 3, x 1 y 2 x 2 y 1 ). 3
4 4 Differentiability Definition 11. A function f : 2, (x, y) f(x, y) is called partially differentiable in the point (a, b) 2 with respect to the variable x (resp. y), if the limit ( f f(a + h, b) f(a, b) (a, b) := lim x h 0 h resp. f (a, b) := lim h 0 f(a, b + h) f(a, b) h ) exists. One then calls f x f (a, b) and (a, b) the partial derivatives of f at (a, b). If f is partially differentiable in every point of 2 with respect to the variables x and y, then one says that f is partially differentiable. A function f : 2, (x, y) f(x, y) is called twice partially differentiable, if it is partially differentiable, and if the partial derivatives f f and are partially differentiable x as well. A function f : 2, (x, y) f(x, y) is called differentiable in the point (a, b) 2, if there exists a linear function L : 2 such that lim (x,y) (a,b) E(x, y) (x a)2 + (y b) 2 = 0, where E : 2 is the error function defined by E(x, y) := f(x, y) f(a, b) L(x, y). One then calls L the linear approximation of f at (a, b), and writes f(x, y) f(a, b) + L(x, y). Definition 12. A function f : n, x f(x) is called partially differentiable in the point a = (a 1,, a n ) n with respect to the variable x i, if for every i, 1 i n the limit f f(a 1,, a i + h,, a n ) f(a 1,, a n ) (a) := lim x i h 0 h exists. One then calls f x i (a) the (i-th) partial derivative of f at a with respect to the variable x i. If f is partially differentiable in every point of n with respect to the variables x 1,...,x n, then one says that f is partially differentiable. A function f : n, x f(x) is called twice partially differentiable, if it is partially differentiable, and if the partial derivatives f x i, 1 i n are partially differentiable as well. A function f : n, x f(x) is called differentiable in the point a n, if there exists a linear function L : n such that lim x a E(x) (x1 a 1 ) (x n a n ) 2 = 0, 4
5 where E : n is the error function defined by E(x) := f(x) f(a) L(x). One then calls L the linear approximation of f at a, and writes f(x) f(a) + L(x). Theorem 13. If f : n, x f(x) is differentiable at a n, then f is partially differentiable and continuous at a. Theorem 14. If f : n, x f(x) is twice partially differentiable, and the second partial derivatives 2 f := f x i x j x i x j are continuous, then for 1 i, j n. 2 f x i x j = 2 f x j x i Definition 15. If f : n, x f(x) is a partially differentiable function, and x n, the vector ( f gradf(x) := (x),, f ) (x) x 1 x n is called the gradient of f at x. Given a function f : n, x f(x) which is partially differentiable (up to isolated points), a point x n is called a critical point of f, if gradf(x) = 0, or if gradf(x) is not defined. 5
6 5 Local and Global Extrema Definition 16. If f : n, x f(x) is a function, a point a n is called a local maximum (resp. local minimum) of f, if f(x) f(a) (resp. f(x) f(a)) for all x n near a. The point a n is called a global maximum (resp. global minimum) of f over the region n, if f(x) f(a) (resp. f(x) f(a)) for all x. Theorem 17. Assume that f : 2, (x, y) f(x, y) is a twice continuously partially differentiable function. Suppose that (a, b) is a point where grad f(a, b) = 0. Let D = 2 f x (a, b) 2 f (a, b) 2 2 ( ) 2 2 f (a, b). x If D > 0 and 2 f (a, b) > 0, then f has a local minimum in a. x2 If D > 0 and 2 f (a, b) < 0, then f has a local maximum in a. x2 If D < 0, then f has a saddle point in a. If D = 0, no conclusion can be made: f can have a local maximum, a local minimum, a saddle point, or none of these in the point (a, b). Definition 18. If f : 2, (x, y) f(x, y) and g : 2, (x, y) g(x, y) are functions, and c a number, a point (a, b) 2 is called a local maximum (resp. local minimum) of f under the constraint g(x, y) = c, if f(x, y) f(a, b) (resp. f(x, y) f(a, b)) for all (x, y) 2 near (a, b) which satisfy g(x, y) = c. The point (a, b) 2 is called a global maximum (resp. global minimum) of f under the constraint g(x, y) = c, if f(x, y) f(a, b) (resp. f(x, y) f(a, b)) for all (x, y) 2 which satisfy g(x, y) = c. Theorem 19. Assume that f : 2, x f(x) is a smooth function, and g : 2, x g(x) a smooth constraint. If f has a maximum or minimum at the point (a, b) under the constraint g(x, y) = c, then (a, b) either satisfies the equations gradf(a, b) = λ gradg(a, b) and g(a, b) = c for some λ, or grad g(a, b) = 0. The number λ is called the Lagrange multiplier. 6
7 6 Coordinate Transformations The coordinate transformation from polar to cartesian coordinates on 2 is given by [0, ) [0, 2π] 2 ( ) ( ) x cosθ (, θ) = y sin θ. The coordinate transformation from cylindrical to cartesian coordinates on 3 is given by [0, ) [0, 2π] 3 x cosθ (, θ, z) y = sin θ z z The coordinate transformation from spherical to cartesian coordinates on 3 is given by. [0, ) [0, 2π] [0, π] 3 x sin φ cosθ (, θ, φ) y = sin φ sinθ z cos φ Definition 20. The Jacobian (x,y) of some coordinate transformation (s, t) ( x(s, t), y(s, t) ) (s,t) of 2 is defined as the determinant (x, y) (s, t) = x s s The Jacobian (x,y,z) of some coordinate transformation (s, t, u) ( x(s, t, u), y(s, t, u), z(s, t, u) ) (s,t,u) of 3 is defined as the determinant (x, y, z) (s, t, u) = x s s z s Theorem ( 21. ) If T 2 is a region which under the coordinate transformation (s, t) x(s, t), y(s, t) of 2 transforms to, and if f : is a continuous function, the following change of variables formula for integrals holds true: f(x, y) dxdy = f ( x(s, t), y(s, t) ) (x, y) (s, t) ds dt. T 7 x t t x t t z t. x u u z u..
8 Theorem ( 22. If T 3 is a ) region which under the coordinate transformation (s, t, u) x(s, t, u), y(s, t, u), z(s, t, u) of 3 transforms to, and if f : is a continuous function, the following change of variables formula for integrals holds true: f(x, y, z) dxdy dz = f ( x(s, t, u), y(s, t, u), z(s, t, u) ) (x, y, z) (s, t, u) ds dt du. T 8
9 7 Curves and Vector Fields Definition 23. By a curve in n one understands the image of a continuous map r : [a, b] n. The map r : [a, b] n is called a parametrization of the curve C. The curve C is called closed, if r(a) = r(b). Definition 24. A continuous map F : n, where n is a region, is a called a vector field on n. Definition 25. If F : n n is a vector field, a differentiable curve r : [a, b] n is called a flow line of F, if r (t) = F( r(t)) for all t [a, b]. Definition 26. A vector field F on an open region of n is called a gradient field, if F = grad(f) for a differentiable function f on. One then calls f a potential for F. Definition 27. The scalar curl of a vector field F = F 1 i + F 2 j : 2 over some region 2 is defined as curl F := F 2 x F 1. Definition 28. The curl of a vector field F = F 1 i+f 2 j +F 3 k : 3 over some region 3 is defined as ( curl F F3 := F ) ( 2 F1 i + z z F ) ( 3 F2 j + x x F ) 1 k. Theorem 29. If is an open convex (or contractible) region in 2 (resp. 3 ), and F a differentiable vector field on, then F is a gradient field if and only if curl F = 0. 9
10 8 Line integrals and Green s Theorem Definition 30. Let C be a piecewise smooth oriented curve in 2 (or 3 ), described by the (piecewise smooth) parametrization r : [a, b] C. Assume further that F is a continuous vector field on a region of 2 (resp. 3 ) containing C. Then the line integral of F along the curve C is given by C F d r = b a F( r(t)) r (t) dt. Theorem 31 (Fundamental Theorem of Calculus for Line Integrals). Let C be a piecewise smooth oriented curve in 2 (or 3 ) parametrized by r : [a, b] C, and let F = gradf be a gradient vector field defined on a region containing C. Then the line integral of F along the curve C depends only on f and the endpoints of C and is given by F d r = f( r(b)) f( r(a)). C Definition 32. A vector field F on an open region of n is called conservative, if for each closed curve C in the line integral of F along the curve C satisfies F d r = 0. C Theorem 33. A vector field F on an (open connected) region of n is a gradient vector field if and only if it is a conservative vector field. In that case, after fixing a point p, a potential is given by f(q) = F d r, C q where q, and C q is a piecewise smooth curve from p to q. Theorem 34 (Green s Theorem). Assume that C is a closed piecewise smooth curve in 2 which is the boundary of some region in 2 such that the region lies always to the left of the curve. Assume further that F is a smooth vector field on an open region containg C and. Then the following formula holds true: F d r = curl F da. C 10
11 9 Flux Integrals Definition 35. Let S be a smooth oriented surface in 3 having a smooth parametrization r : 3, (s, t) r(s, t), where is a region in 2. The flux of a smooth vector field F through S then is given by F da = F ( r(s, t) ) ( r s r ) ds dt. t S Theorem 36. Let S be a surface in 3 and F a smooth vector field defined on an open region containing S. (i) If S is the graph of a smooth function z = f(x, y) above a region in the xy-plane, the flux of F through S is F da = F ( x, y, f(x, y) ) ( f x i f ) j + k dxdy. S (ii) If S is a cylindrical surface around the z-axis of radius and oriented away from the z-axis, the flux of F through S is F da = F (, θ, z) ) ( ) cosθ i + sin θ j dz dθ, S where T is the θz-region corresponding to S. (iii) If S is a spherical surface of radius and oriented away from the origin, the flux of F through S is F da = F (, θ, φ) ) ( sin φ cosθ i + sin φ sin θ j + cosφ ) k 2 sin φ dθ dφ, S where T is the θφ-region corresponding to S. 10 Calculus of Vector Fields Definition 37. The divergence of a vector field F = F 1 i+f 2 j +F 3 k : 3 over some open region 3 is defined as div F := F 1 x + F 2 + F 3 z. Theorem 38 (The Divergence Theorem). Assume that W is a solid region in 3 whose boundary S is a piecewise smooth surface, and that F is a smooth vector field on an open region containing W and S. Then F da = div F dv, where S is given the outward orientation. S W 11
12 Theorem 39 (Stokes Theorem). Assume that S is a smooth oriented surface in 3 with piecewise smooth orientiable boundary C, and that F is a smooth vector field on an open region containing S and C. Then F d r = curl F da, where C is given the orientation induced by S. C Theorem 40. If is an open convex (or contractible) region in 3, and F a differentiable vector field on, then F is a curl field if and only if div F = 0. S 12
1. Suppose that the equation F (x, y, z) = 0 implicitly defines each of the three variables x, y, and z as functions of the other two:
Final Solutions. Suppose that the equation F (x, y, z) implicitly defines each of the three variables x, y, and z as functions of the other two: z f(x, y), y g(x, z), x h(y, z). If F is differentiable
More informationMath 241, Final Exam. 12/11/12.
Math, Final Exam. //. No notes, calculator, or text. There are points total. Partial credit may be given. ircle or otherwise clearly identify your final answer. Name:. (5 points): Equation of a line. Find
More informationCalculus III. Math 233 Spring In-term exam April 11th. Suggested solutions
Calculus III Math Spring 7 In-term exam April th. Suggested solutions This exam contains sixteen problems numbered through 6. Problems 5 are multiple choice problems, which each count 5% of your total
More informationChapter 15 Vector Calculus
Chapter 15 Vector Calculus 151 Vector Fields 152 Line Integrals 153 Fundamental Theorem and Independence of Path 153 Conservative Fields and Potential Functions 154 Green s Theorem 155 urface Integrals
More informationMAC2313 Test 3 A E g(x, y, z) dy dx dz
MAC2313 Test 3 A (5 pts) 1. If the function g(x, y, z) is integrated over the cylindrical solid bounded by x 2 + y 2 = 3, z = 1, and z = 7, the correct integral in Cartesian coordinates is given by: A.
More informationUniversity of California, Berkeley
University of California, Berkeley FINAL EXAMINATION, Fall 2012 DURATION: 3 hours Department of Mathematics MATH 53 Multivariable Calculus Examiner: Sean Fitzpatrick Total: 100 points Family Name: Given
More informationMath Exam III Review
Math 213 - Exam III Review Peter A. Perry University of Kentucky April 10, 2019 Homework Exam III is tonight at 5 PM Exam III will cover 15.1 15.3, 15.6 15.9, 16.1 16.2, and identifying conservative vector
More informationSection Parametrized Surfaces and Surface Integrals. (I) Parametrizing Surfaces (II) Surface Area (III) Scalar Surface Integrals
Section 16.4 Parametrized Surfaces and Surface Integrals (I) Parametrizing Surfaces (II) Surface Area (III) Scalar Surface Integrals MATH 127 (Section 16.4) Parametrized Surfaces and Surface Integrals
More informationMATH 2023 Multivariable Calculus
MATH 2023 Multivariable Calculus Problem Sets Note: Problems with asterisks represent supplementary informations. You may want to read their solutions if you like, but you don t need to work on them. Set
More informationTotal. Math 2130 Practice Final (Spring 2017) (1) (2) (3) (4) (5) (6) (7) (8)
Math 130 Practice Final (Spring 017) Before the exam: Do not write anything on this page. Do not open the exam. Turn off your cell phone. Make sure your books, notes, and electronics are not visible during
More informationMAC2313 Final A. a. The vector r u r v lies in the tangent plane of S at a given point. b. S f(x, y, z) ds = R f(r(u, v)) r u r v du dv.
MAC2313 Final A (5 pts) 1. Let f(x, y, z) be a function continuous in R 3 and let S be a surface parameterized by r(u, v) with the domain of the parameterization given by R; how many of the following are
More informationGrad operator, triple and line integrals. Notice: this material must not be used as a substitute for attending the lectures
Grad operator, triple and line integrals Notice: this material must not be used as a substitute for attending the lectures 1 .1 The grad operator Let f(x 1, x,..., x n ) be a function of the n variables
More informationMATH 2400: CALCULUS 3 MAY 9, 2007 FINAL EXAM
MATH 4: CALCULUS 3 MAY 9, 7 FINAL EXAM I have neither given nor received aid on this exam. Name: 1 E. Kim................ (9am) E. Angel.............(1am) 3 I. Mishev............ (11am) 4 M. Daniel...........
More informationMath 113 Calculus III Final Exam Practice Problems Spring 2003
Math 113 Calculus III Final Exam Practice Problems Spring 23 1. Let g(x, y, z) = 2x 2 + y 2 + 4z 2. (a) Describe the shapes of the level surfaces of g. (b) In three different graphs, sketch the three cross
More informationMATH. 2153, Spring 16, MWF 12:40 p.m. QUIZ 1 January 25, 2016 PRINT NAME A. Derdzinski Show all work. No calculators. The problem is worth 10 points.
MATH. 2153, Spring 16, MWF 12:40 p.m. QUIZ 1 January 25, 2016 PRINT NAME A. Derdzinski Show all work. No calculators. The problem is worth 10 points. 1. Evaluate the area A of the triangle with the vertices
More informationDr. Allen Back. Nov. 21, 2014
Dr. Allen Back of Nov. 21, 2014 The most important thing you should know (e.g. for exams and homework) is how to setup (and perhaps compute if not too hard) surface integrals, triple integrals, etc. But
More information18.02 Final Exam. y = 0
No books, notes or calculators. 5 problems, 50 points. 8.0 Final Exam Useful formula: cos (θ) = ( + cos(θ)) Problem. (0 points) a) (5 pts.) Find the equation in the form Ax + By + z = D of the plane P
More informationCalculus III Meets the Final
Calculus III Meets the Final Peter A. Perry University of Kentucky December 7, 2018 Homework Review for Final Exam on Thursday, December 13, 6:00-8:00 PM Be sure you know which room to go to for the final!
More informationMAT203 OVERVIEW OF CONTENTS AND SAMPLE PROBLEMS
MAT203 OVERVIEW OF CONTENTS AND SAMPLE PROBLEMS MAT203 covers essentially the same material as MAT201, but is more in depth and theoretical. Exam problems are often more sophisticated in scope and difficulty
More informationR f da (where da denotes the differential of area dxdy (or dydx)
Math 28H Topics for the second exam (Technically, everything covered on the first exam, plus) Constrained Optimization: Lagrange Multipliers Most optimization problems that arise naturally are not unconstrained;
More information8(x 2) + 21(y 1) + 6(z 3) = 0 8x + 21y + 6z = 55.
MATH 24 -Review for Final Exam. Let f(x, y, z) x 2 yz + y 3 z x 2 + z, and a (2,, 3). Note: f (2xyz 2x, x 2 z + 3y 2 z, x 2 y + y 3 + ) f(a) (8, 2, 6) (a) Find all stationary points (if any) of f. et f.
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Calculus III-Final review Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the corresponding position vector. 1) Define the points P = (-,
More informationMATH 230 FALL 2004 FINAL EXAM DECEMBER 13, :20-2:10 PM
Problem Score 1 2 Name: SID: Section: Instructor: 3 4 5 6 7 8 9 10 11 12 Total MATH 230 FALL 2004 FINAL EXAM DECEMBER 13, 2004 12:20-2:10 PM INSTRUCTIONS There are 12 problems on this exam for a total
More information1 Vector Functions and Space Curves
ontents 1 Vector Functions and pace urves 2 1.1 Limits, Derivatives, and Integrals of Vector Functions...................... 2 1.2 Arc Length and urvature..................................... 2 1.3 Motion
More informationDr. Allen Back. Nov. 19, 2014
Why of Dr. Allen Back Nov. 19, 2014 Graph Picture of T u, T v for a Lat/Long Param. of the Sphere. Why of Graph Basic Picture Why of Graph Why Φ(u, v) = (x(u, v), y(u, v), z(u, v)) Tangents T u = (x u,
More information8/5/2010 FINAL EXAM PRACTICE IV Maths 21a, O. Knill, Summer 2010
8/5/21 FINAL EXAM PRACTICE IV Maths 21a, O. Knill, Summer 21 Name: Start by printing your name in the above box. Try to answer each question on the same page as the question is asked. If needed, use the
More informationCurves: We always parameterize a curve with a single variable, for example r(t) =
Final Exam Topics hapters 16 and 17 In a very broad sense, the two major topics of this exam will be line and surface integrals. Both of these have versions for scalar functions and vector fields, and
More informationMath 52 Final Exam March 16, 2009
Math 52 Final Exam March 16, 2009 Name : Section Leader: Josh Lan Xiannan (Circle one) Genauer Huang Li Section Time: 10:00 11:00 1:15 2:15 (Circle one) This is a closed-book, closed-notes exam. No calculators
More informationMA 174: Multivariable Calculus Final EXAM (practice) NO CALCULATORS, BOOKS, OR PAPERS ARE ALLOWED. Use the back of the test pages for scrap paper.
MA 174: Multivariable alculus Final EXAM (practice) NAME lass Meeting Time: NO ALULATOR, BOOK, OR PAPER ARE ALLOWED. Use the back of the test pages for scrap paper. Points awarded 1. (5 pts). (5 pts).
More informationMA 243 Calculus III Fall Assignment 1. Reading assignments are found in James Stewart s Calculus (Early Transcendentals)
MA 43 Calculus III Fall 8 Dr. E. Jacobs Assignments Reading assignments are found in James Stewart s Calculus (Early Transcendentals) Assignment. Spheres and Other Surfaces Read. -. and.6 Section./Problems
More informationMath 2374 Spring 2007 Midterm 3 Solutions - Page 1 of 6 April 25, 2007
Math 374 Spring 7 Midterm 3 Solutions - Page of 6 April 5, 7. (3 points) Consider the surface parametrized by (x, y, z) Φ(x, y) (x, y,4 (x +y )) between the planes z and z 3. (i) (5 points) Set up the
More informationREVIEW I MATH 254 Calculus IV. Exam I (Friday, April 29) will cover sections
REVIEW I MATH 254 Calculus IV Exam I (Friday, April 29 will cover sections 14.1-8. 1. Functions of multivariables The definition of multivariable functions is similar to that of functions of one variable.
More informationChapter 5 Partial Differentiation
Chapter 5 Partial Differentiation For functions of one variable, y = f (x), the rate of change of the dependent variable can dy be found unambiguously by differentiation: f x. In this chapter we explore
More informationPURE MATHEMATICS 212 Multivariable Calculus CONTENTS. Page. 1. Assignment Summary... i 2. Summary Assignments...2
PURE MATHEMATICS 212 Multivariable Calculus CONTENTS Page 1. Assignment Summary... i 2. Summary...1 3. Assignments...2 i PMTH212, Multivariable Calculus Assignment Summary 2010 Assignment Date to be Posted
More informationSolution of final examination
of final examination Math 20, pring 201 December 9, 201 Problem 1 Let v(t) (2t e t ) i j + π cos(πt) k be the velocity of a particle with initial position r(0) ( 1, 0, 2). Find the accelaration at the
More informationf xx (x, y) = 6 + 6x f xy (x, y) = 0 f yy (x, y) = y In general, the quantity that we re interested in is
1. Let f(x, y) = 5 + 3x 2 + 3y 2 + 2y 3 + x 3. (a) Final all critical points of f. (b) Use the second derivatives test to classify the critical points you found in (a) as a local maximum, local minimum,
More informationCoordinate Transformations in Advanced Calculus
Coordinate Transformations in Advanced Calculus by Sacha Nandlall T.A. for MATH 264, McGill University Email: sacha.nandlall@mail.mcgill.ca Website: http://www.resanova.com/teaching/calculus/ Fall 2006,
More informationMATH 261 EXAM III PRACTICE PROBLEMS
MATH 6 EXAM III PRACTICE PROBLEMS These practice problems are pulled from actual midterms in previous semesters. Exam 3 typically has 5 (not 6!) problems on it, with no more than one problem of any given
More informationThe Divergence Theorem
The Divergence Theorem MATH 311, Calculus III J. Robert Buchanan Department of Mathematics Summer 2011 Green s Theorem Revisited Green s Theorem: M(x, y) dx + N(x, y) dy = C R ( N x M ) da y y x Green
More informationA small review, Second Midterm, Calculus 3, Prof. Montero 3450: , Fall 2008
A small review, Second Midterm, Calculus, Prof. Montero 45:-4, Fall 8 Maxima and minima Let us recall first, that for a function f(x, y), the gradient is the vector ( f)(x, y) = ( ) f f (x, y); (x, y).
More informationBackground for Surface Integration
Background for urface Integration 1 urface Integrals We have seen in previous work how to define and compute line integrals in R 2. You should remember the basic surface integrals that we will need to
More informationA1:Orthogonal Coordinate Systems
A1:Orthogonal Coordinate Systems A1.1 General Change of Variables Suppose that we express x and y as a function of two other variables u and by the equations We say that these equations are defining a
More informationMath 209 (Fall 2007) Calculus III. Solution #5. 1. Find the minimum and maximum values of the following functions f under the given constraints:
Math 9 (Fall 7) Calculus III Solution #5. Find the minimum and maximum values of the following functions f under the given constraints: (a) f(x, y) 4x + 6y, x + y ; (b) f(x, y) x y, x + y 6. Solution:
More informationCalculus IV. Exam 2 November 13, 2003
Name: Section: Calculus IV Math 1 Fall Professor Ben Richert Exam November 1, Please do all your work in this booklet and show all the steps. Calculators and note-cards are not allowed. Problem Possible
More information10.7 Triple Integrals. The Divergence Theorem of Gauss
10.7 riple Integrals. he Divergence heorem of Gauss We begin by recalling the definition of the triple integral f (x, y, z) dv, (1) where is a bounded, solid region in R 3 (for example the solid ball {(x,
More informationName: Class: Date: 1. Use Lagrange multipliers to find the maximum and minimum values of the function subject to the given constraint.
. Use Lagrange multipliers to find the maximum and minimum values of the function subject to the given constraint. f (x, y) = x y, x + y = 8. Set up the triple integral of an arbitrary continuous function
More informationPURE MATHEMATICS 212 Multivariable Calculus CONTENTS. Page. 1. Assignment Summary... i 2. Introduction Timetable Assignments...
PURE MATHEMATICS 212 Multivariable Calculus CONTENTS Page 1. Assignment Summary... i 2. Introduction...1 3. Timetable... 3 4. Assignments...5 i PMTH212, Multivariable Calculus Assignment Summary 2009
More informationMath 241, Exam 3 Information.
Math 241, xam 3 Information. 11/28/12, LC 310, 11:15-12:05. xam 3 will be based on: Sections 15.2-15.4, 15.6-15.8. The corresponding assigned homework problems (see http://www.math.sc.edu/ boylan/sccourses/241fa12/241.html)
More informationThere are 10 problems, with a total of 150 points possible. (a) Find the tangent plane to the surface S at the point ( 2, 1, 2).
Instructions Answer each of the questions on your own paper, and be sure to show your work so that partial credit can be adequately assessed. Put your name on each page of your paper. You may use a scientific
More informationMath 241 Spring 2015 Final Exam Solutions
Math 4 Spring 5 Final Exam Solutions. Find the equation of the plane containing the line x y z+ and the point (,,). Write [ pts] your final answer in the form ax+by +cz d. Solution: A vector parallel to
More informationMATH 116 REVIEW PROBLEMS for the FINAL EXAM
MATH 116 REVIEW PROBLEMS for the FINAL EXAM The following questions are taken from old final exams of various calculus courses taught in Bilkent University 1. onsider the line integral (2xy 2 z + y)dx
More informationFirst we consider how to parameterize a surface (similar to a parameterized curve for line integrals). Surfaces will need two parameters.
Math 55 - Vector Calculus II Notes 14.6 urface Integrals Let s develop some surface integrals. First we consider how to parameterize a surface (similar to a parameterized curve for line integrals). urfaces
More informationMATH 234. Excercises on Integration in Several Variables. I. Double Integrals
MATH 234 Excercises on Integration in everal Variables I. Double Integrals Problem 1. D = {(x, y) : y x 1, 0 y 1}. Compute D ex3 da. Problem 2. Find the volume of the solid bounded above by the plane 3x
More informationContents. 3 Multiple Integration. 3.1 Double Integrals in Rectangular Coordinates
Calculus III (part 3): Multiple Integration (by Evan Dummit, 8, v. 3.) Contents 3 Multiple Integration 3. Double Integrals in Rectangular Coordinates............................... 3.. Double Integrals
More informationMath 11 Fall 2016 Section 1 Monday, October 17, 2016
Math 11 Fall 16 Section 1 Monday, October 17, 16 First, some important points from the last class: f(x, y, z) dv, the integral (with respect to volume) of f over the three-dimensional region, is a triple
More informationParametric Surfaces. Substitution
Calculus Lia Vas Parametric Surfaces. Substitution Recall that a curve in space is given by parametric equations as a function of single parameter t x = x(t) y = y(t) z = z(t). A curve is a one-dimensional
More informationMATH203 Calculus. Dr. Bandar Al-Mohsin. School of Mathematics, KSU
School of Mathematics, KSU Theorem The rectangular coordinates (x, y, z) and the cylindrical coordinates (r, θ, z) of a point P are related as follows: x = r cos θ, y = r sin θ, tan θ = y x, r 2 = x 2
More informationApplications of Triple Integrals
Chapter 14 Multiple Integrals 1 Double Integrals, Iterated Integrals, Cross-sections 2 Double Integrals over more general regions, Definition, Evaluation of Double Integrals, Properties of Double Integrals
More informationOutcomes List for Math Multivariable Calculus (9 th edition of text) Spring
Outcomes List for Math 200-200935 Multivariable Calculus (9 th edition of text) Spring 2009-2010 The purpose of the Outcomes List is to give you a concrete summary of the material you should know, and
More informationMH2800/MAS183 - Linear Algebra and Multivariable Calculus
MH28/MAS83 - Linear Algebra and Multivariable Calculus SEMESTER II EXAMINATION 2-22 Solved by Tao Biaoshuai Email: taob@e.ntu.edu.sg QESTION Let A 2 2 2. Solve the homogeneous linear system Ax and write
More informationMath 251 Quiz 5 Fall b. Calculate. 2. Sketch the region. Write as one double integral by interchanging the order of integration: 2
Math 251 Quiz 5 Fall 2002 1. a. Calculate 5 1 0 1 x dx dy b. Calculate 1 5 1 0 xdxdy 2. Sketch the region. Write as one double integral by interchanging the order of integration: 0 2 dx 2 x dy f(x,y) +
More informationChapter 15 Notes, Stewart 7e
Contents 15.2 Iterated Integrals..................................... 2 15.3 Double Integrals over General Regions......................... 5 15.4 Double Integrals in Polar Coordinates..........................
More informationf (Pijk ) V. may form the Riemann sum: . Definition. The triple integral of f over the rectangular box B is defined to f (x, y, z) dv = lim
Chapter 14 Multiple Integrals..1 Double Integrals, Iterated Integrals, Cross-sections.2 Double Integrals over more general regions, Definition, Evaluation of Double Integrals, Properties of Double Integrals.3
More informationIntegration using Transformations in Polar, Cylindrical, and Spherical Coordinates
ections 15.4 Integration using Transformations in Polar, Cylindrical, and pherical Coordinates Cylindrical Coordinates pherical Coordinates MATH 127 (ection 15.5) Applications of Multiple Integrals The
More informationMath 21a Final Exam Solutions Spring, 2009
Math a Final Eam olutions pring, 9 (5 points) Indicate whether the following statements are True or False b circling the appropriate letter No justifications are required T F The (vector) projection of
More informationMultivariate Calculus Review Problems for Examination Two
Multivariate Calculus Review Problems for Examination Two Note: Exam Two is on Thursday, February 28, class time. The coverage is multivariate differential calculus and double integration: sections 13.3,
More informationMath 253, Section 102, Fall 2006 Practice Final Solutions
Math 253, Section 102, Fall 2006 Practice Final Solutions 1 2 1. Determine whether the two lines L 1 and L 2 described below intersect. If yes, find the point of intersection. If not, say whether they
More informationMath 210, Exam 2, Spring 2010 Problem 1 Solution
Math, Exam, Spring Problem Solution. Find and classify the critical points of the function f(x,y) x 3 +3xy y 3. Solution: By definition, an interior point (a,b) in the domain of f is a critical point of
More information302 CHAPTER 3. FUNCTIONS OF SEVERAL VARIABLES. 4. Function of several variables, their domain. 6. Limit of a function of several variables
302 CHAPTER 3. FUNCTIONS OF SEVERAL VARIABLES 3.8 Chapter Review 3.8.1 Concepts to Know You should have an understanding of, and be able to explain the concepts listed below. 1. Boundary and interior points
More informationTo find the maximum and minimum values of f(x, y, z) subject to the constraints
Midterm 3 review Math 265 Fall 2007 14.8. Lagrange Multipliers. Case 1: One constraint. To find the maximum and minimum values of f(x, y, z) subject to the constraint g(x, y, z) = k: Step 1: Find all values
More informationDouble Integrals, Iterated Integrals, Cross-sections
Chapter 14 Multiple Integrals 1 ouble Integrals, Iterated Integrals, Cross-sections 2 ouble Integrals over more general regions, efinition, Evaluation of ouble Integrals, Properties of ouble Integrals
More informationMath S21a: Multivariable calculus Oliver Knill, Summer 2018
Math 2a: Multivariable calculus Oliver Knill, ummer 208 hecklist III Partial Derivatives f x (x,y) = f(x,y) partial derivative x L(x,y) = f(x 0,y 0 )+f x (x 0,y 0 )(x x 0 )+f y (x 0,y 0 )(y y 0 ) linear
More informationPolar Coordinates. Chapter 10: Parametric Equations and Polar coordinates, Section 10.3: Polar coordinates 27 / 45
: Given any point P = (x, y) on the plane r stands for the distance from the origin (0, 0). θ stands for the angle from positive x-axis to OP. Polar coordinate: (r, θ) Chapter 10: Parametric Equations
More informationDouble Integrals over Polar Coordinate
1. 15.4 DOUBLE INTEGRALS OVER POLAR COORDINATE 1 15.4 Double Integrals over Polar Coordinate 1. Polar Coordinates. The polar coordinates (r, θ) of a point are related to the rectangular coordinates (x,y)
More informationWW Prob Lib1 Math course-section, semester year
WW Prob Lib Math course-section, semester year WeBWorK assignment due /25/06 at :00 PM..( pt) Consider the parametric equation x = 7(cosθ + θsinθ) y = 7(sinθ θcosθ) What is the length of the curve for
More informationQuiz problem bank. Quiz 1 problems. 1. Find all solutions (x, y) to the following:
Quiz problem bank Quiz problems. Find all solutions x, y) to the following: xy x + y = x + 5x + 4y = ) x. Let gx) = ln. Find g x). sin x 3. Find the tangent line to fx) = xe x at x =. 4. Let hx) = x 3
More informationExam 2 Preparation Math 2080 (Spring 2011) Exam 2: Thursday, May 12.
Multivariable Calculus Exam 2 Preparation Math 28 (Spring 2) Exam 2: Thursday, May 2. Friday May, is a day off! Instructions: () There are points on the exam and an extra credit problem worth an additional
More informationMath 240 Practice Problems
Math 4 Practice Problems Note that a few of these questions are somewhat harder than questions on the final will be, but they will all help you practice the material from this semester. 1. Consider the
More informationWorksheet 3.4: Triple Integrals in Cylindrical Coordinates. Warm-Up: Cylindrical Volume Element d V
Boise State Math 275 (Ultman) Worksheet 3.4: Triple Integrals in Cylindrical Coordinates From the Toolbox (what you need from previous classes) Know what the volume element dv represents. Be able to find
More information(c) 0 (d) (a) 27 (b) (e) x 2 3x2
1. Sarah the architect is designing a modern building. The base of the building is the region in the xy-plane bounded by x =, y =, and y = 3 x. The building itself has a height bounded between z = and
More informationMultiple Integrals. max x i 0
Multiple Integrals 1 Double Integrals Definite integrals appear when one solves Area problem. Find the area A of the region bounded above by the curve y = f(x), below by the x-axis, and on the sides by
More informationPolar Coordinates. Chapter 10: Parametric Equations and Polar coordinates, Section 10.3: Polar coordinates 28 / 46
Polar Coordinates Polar Coordinates: Given any point P = (x, y) on the plane r stands for the distance from the origin (0, 0). θ stands for the angle from positive x-axis to OP. Polar coordinate: (r, θ)
More informationMultivariate Calculus: Review Problems for Examination Two
Multivariate Calculus: Review Problems for Examination Two Note: Exam Two is on Tuesday, August 16. The coverage is multivariate differential calculus and double integration. You should review the double
More informationThis exam will be cumulative. Consult the review sheets for the midterms for reviews of Chapters
Final exam review Math 265 Fall 2007 This exam will be cumulative. onsult the review sheets for the midterms for reviews of hapters 12 15. 16.1. Vector Fields. A vector field on R 2 is a function F from
More informationName: Final Exam Review. (b) Reparameterize r(t) with respect to arc length measured for the point (1, 0, 1) in the direction of increasing t.
MATH 127 ALULU III Name: 1. Let r(t) = e t i + e t sin t j + e t cos t k (a) Find r (t) Final Exam Review (b) Reparameterize r(t) with respect to arc length measured for the point (1,, 1) in the direction
More information12/19/2009, FINAL PRACTICE I Math 21a, Fall Name:
12/19/2009, FINAL PRACTICE I Math 21a, Fall 2009 Name: MWF 9 Jameel Al-Aidroos MWF 10 Andrew Cotton-Clay MWF 10 Oliver Knill MWF 10 HT Yau MWF 11 Ana Caraiani MWF 11 Chris Phillips MWF 11 Ethan Street
More informationConstrained Optimization and Lagrange Multipliers
Constrained Optimization and Lagrange Multipliers MATH 311, Calculus III J. Robert Buchanan Department of Mathematics Fall 2011 Constrained Optimization In the previous section we found the local or absolute
More informationMAT175 Overview and Sample Problems
MAT175 Overview and Sample Problems The course begins with a quick review/overview of one-variable integration including the Fundamental Theorem of Calculus, u-substitutions, integration by parts, and
More informationContents. MATH 32B-2 (18W) (L) G. Liu / (TA) A. Zhou Calculus of Several Variables. 1 Homework 1 - Solutions 3. 2 Homework 2 - Solutions 13
MATH 32B-2 (8) (L) G. Liu / (TA) A. Zhou Calculus of Several Variables Contents Homework - Solutions 3 2 Homework 2 - Solutions 3 3 Homework 3 - Solutions 9 MATH 32B-2 (8) (L) G. Liu / (TA) A. Zhou Calculus
More informationMath 265 Exam 3 Solutions
C Roettger, Fall 16 Math 265 Exam 3 Solutions Problem 1 Let D be the region inside the circle r 5 sin θ but outside the cardioid r 2 + sin θ. Find the area of D. Note that r and θ denote polar coordinates.
More informationCalculus 234. Problems. May 15, 2003
alculus 234 Problems May 15, 23 A book reference marked [TF] indicates this semester s official text; a book reference marked [VPR] indicates the official text for next semester. These are [TF] Thomas
More informationMATH 209 Lab Solutions
MATH 9 Lab Solutions Richard M. Slevinsky 1 November 1, 13 1 Contact: rms8@ualberta.ca Contents 1 Multivariable Functions and Limits Partial Derivatives 6 3 Directional Derivatives and Gradients 15 4 Maximum
More information1 Double Integrals over Rectangular Regions
Contents ouble Integrals over Rectangular Regions ouble Integrals Over General Regions 7. Introduction.................................... 7. Areas of General Regions............................. 9.3 Region
More informationLecture 23. Surface integrals, Stokes theorem, and the divergence theorem. Dan Nichols
Lecture 23 urface integrals, tokes theorem, and the divergence theorem an Nichols nichols@math.umass.edu MATH 233, pring 218 University of Massachusetts April 26, 218 (2) Last time: Green s theorem Theorem
More informationTopic 5-6: Parameterizing Surfaces and the Surface Elements ds and ds. Big Ideas. What We Are Doing Today... Notes. Notes. Notes
Topic 5-6: Parameterizing Surfaces and the Surface Elements ds and ds. Textbook: Section 16.6 Big Ideas A surface in R 3 is a 2-dimensional object in 3-space. Surfaces can be described using two variables.
More informationHw 4 Due Feb 22. D(fg) x y z (
Hw 4 Due Feb 22 2.2 Exercise 7,8,10,12,15,18,28,35,36,46 2.3 Exercise 3,11,39,40,47(b) 2.4 Exercise 6,7 Use both the direct method and product rule to calculate where f(x, y, z) = 3x, g(x, y, z) = ( 1
More informationFunctions of Several Variables
Jim Lambers MAT 280 Spring Semester 2009-10 Lecture 2 Notes These notes correspond to Section 11.1 in Stewart and Section 2.1 in Marsden and Tromba. Functions of Several Variables Multi-variable calculus
More informationF dr = f dx + g dy + h dz. Using that dz = q x dx + q y dy we get. (g + hq y ) x (f + hq x ) y da.
Math 55 - Vector alculus II Notes 14.7 tokes Theorem tokes Theorem is the three-dimensional version of the circulation form of Green s Theorem. Let s quickly recall that theorem: Green s Theorem: Let be
More informationWinter 2012 Math 255 Section 006. Problem Set 7
Problem Set 7 1 a) Carry out the partials with respect to t and x, substitute and check b) Use separation of varibles, i.e. write as dx/x 2 = dt, integrate both sides and observe that the solution also
More informationPhysics 235 Chapter 6. Chapter 6 Some Methods in the Calculus of Variations
Chapter 6 Some Methods in the Calculus of Variations In this Chapter we focus on an important method of solving certain problems in Classical Mechanics. In many problems we need to determine how a system
More information