please use derivatives 3. Find the extreme value(s), if any exist, of the following functions. Show...
ECON 1111A/B Mathematical Methods in Economics II 2nd term, 2018-2019 Assignment 6 Show your steps clearly Define the definiteness of the following A-[1 5 a. b. 1 4 6 d. D= -2 3 1 -2 1 2 E 2 -3 1 2. Is the function f(x,y) - 7x2 + 4xy + y2 positive definite, negative definite, positive semidefinite or negative semidefinite? Find the extreme values for the following functions and identify whether they are local maximum, local minimum, and saddle...
showing multivariable calculus functions are differentiable
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2. Recall that by Theorem 3 of Section 14.3, a function f(x,y) is differentiable if its partial derivatives fa and fy both exist and are continuous. (a) Use this idea to show that the function f(x,y)-esin ry is differentiable. (b) Let o be a differentiable function and f(,)Jy Find the partial derivatives of f and determine whether they are continuous. Hint: The Fundamental Theorem of Calculus gives us that Ø has an...
Find the derivatives of the following functions (A) y=xt-x2 (B) y=x2 (C) y-3x3 + 4x -3 (D) y=x (F) f(x)- 100x100 (G) fx)- (H) f(x)=- 1-5r ) f(x)= (J f(x) - (x + 1)(x3 +5x + 2) (Requires quotient rule) 4+x For f(x) = 6x3, find f(x) and f"(x), and fm(x). For f(x)- 5x3 -3x2+x-20, find f(x), f"(x), and f""(x)
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In Exercises 17-19, Use the graph to determine a. The functions domain b. The function's range: C. The X-intercepts, if any, a the y- untercept, if there is one e. Intervals on which the function is increasing, decreasing, or constant; and F. the missing function values indicated by question marks, below each graph. 17. y = f(x) y y 18. 3 2 1 2+ 1 2 3 4 -11 1 2 3 4 5 -2...
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The graph and equation of the function f are given. a. Use the graph to find any values at which f has a relative maximum, and use the equation to calculate the relative maximum for each value b. Use the graph to find any values at which f has a relative minimum, and use the equation to calculate the relative minimum for each value. fx)-2x3+3x2 -12x+7 I-5.5.1] by I-35,35,5] a. Select the...
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= 2, and you We consider some function () whose domain of g is all real numbers except are given and g" as follows: ' ) = e't-3) (1-2)2 (r - 2) "(t)er? - 6r + 10) a) Find all points where ) = 0 or g'(c) does not exist. Give a sign diagram for g'(x). Indicate where g is increasing or decreasing. Find all local minima and maxima of g(x). b) Find...
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Find the relative extrema and the points of inflection f any exist)of the function. Use a graphing utility to graph the function and confirm your results. (Round your answers to three decimal places. If an answer does not exist, enter DNE maximum inflection point x, y) smaller a-value) rflection poin x, y) larger x-value) Need Help? at oter 15. 0.5/1 points | Previous Answers LarCalc11 5.4.089 For large values of n, n! = 1.2.3.4 (n-1):n can be...
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For the following exercises, find the local and/or absolute maxima for the functions over the specified domain. 128. y = 4 sin - 3 cose over [0, 21) For the following exercises, show there is no c such that f(1)-f(-1) = f'(c)(2). Explain why the Mean Value Theorem does not apply over the interval [-1, 1). 168. f For the following exercises, determine a. intervals where f is increasing or decreasing, b. local minima...
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11. Give the values of the definite integrals: 1., (x) dx = 12, 1,8(x) dx = -6, 5, 8(x) dx = 24 find: |.[2f(x) + 4g(x)] dx = b) {**$(x) dx = — c) | ,8(x) dx = 12. (8 pts.) The graph of f'(x) is given. Identify the following properties for f(x). YA y= f'(x) far a) What are the x-values of the critical numbers on the graph: b) Make a sign chart for...
1. Consider the differential equation" = y2 - 4y - 5. a) Find any equilibrium solution(s). b) Create an appropriate table of values and then sketch (using the grid provided) a direction field for this differential equation on OSIS 3. Be sure to label values on your axes. c) Using the direction field, describe in detail the behavior of y ast approaches infinity. 2. Short answer: State whether or not the differential equation is linear. If it is linear, state...