Advanced Engineering Mathematics
6th Edition
ISBN: 9781284105902
Author: Dennis G. Zill
Publisher: Jones & Bartlett Learning
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Chapter 17.4, Problem 13E
To determine
To Express: The given function in the form of
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In Problems 47–52, find functions f and g so that f ∘ g = H.
In Problems 13–24, use the graph of the function f given.
In Problems 11–20, for the given functions f and g. find:
(a) (f° g)(4)
(b) (g•f)(2)
(c) (fof)(1)
(d) (g ° g)(0)
\ 11. f(x) = 2x; g(x) = 3x² + 1
12. f(x) = 3x + 2; g(x) = 2x² – 1
1
13. f(x) = 4x² – 3; g(x) = 3
14. f(x) = 2x²; g(x) = 1 – 3x²
15. f(x) = Vx; 8(x) = 2x
16. f(x) = Vx + 1; g(x) = 3x
%3D
1.
17. f(x) = |x|; g(x) =
18. f(x) = |x – 2|: g(x)
x² + 2
2
x + 1
x² + 1
19. f(x) =
3
8(x) = Vĩ
20. f(x) = x³/2; g(x) =
X + 1'
Chapter 17 Solutions
Advanced Engineering Mathematics
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- In Problems 6–11, find the domain of each functionarrow_forwardIn Problems 85–90, use the Intermediate Value Theorem to show that each function has a zero in the given interval. Approximate the zerocorrect to two decimal places.arrow_forwardIn Problems 39–46, show that 1f ∘ g2 1x2 = 1g ∘ f2 1x2 = x.arrow_forward
- In Problems 49–56, for each graph of a function y = f(x), find the absolute maximum and the absolute minimum, if they exist. Identify any local maximum values or local minimum values.arrow_forwardIn Problems 23–28, answer the questions about the given function. x² + 2 26. f(x) = x + 4 23. f(x) = 2x? - x - 1 (a) Is the point (-1, 2) on the graph of f? (b) If x = -2, what is f(x)? What point is on the graph of f? (c) If f(x) = -1, what is x? What point(s) are on the graph of f? (d) What is the domain of f? (e) List the x-intercepts, if any, of the graph of f. (f) List the y-intercept, if there is one, of the graph of f. 24. f(x) = -3x² + 5x (a) Is the point (-1, 2) on the graph of f? (b) If x = -2, what is f(x)? What point is on the graph of f? (c) If f(x) = -2, what is x? What point(s) are on the graph of f? (d) What is the domain of f? (e) List the x-intercepts, if any, of the graph of f. (f) List the y-intercept, if there is one, of the graph of f. x + 2 (a) Is the point ( 1,) on the graph of f? (b) If x = 0, what is f(x)? What point is on the graph of f? (c) If f(x) =5. what is x? What point(s) are on the graph of f? (d) What is the domain of f? (e) List the x-intercepts, if…arrow_forwardIn Problems 94–97, the graphs of the given pairs of functions intersectinfinitely many times. In each problem, find four of these points ofintersection.arrow_forward
- In Problems 49–56, for each graph of a function y = f(x), find the absolute maximum and the absolute minimum, if they exist. Identifyany local maximum values or local minimum values.arrow_forwardIn Problems 13–24, determine whether the graph is that of a function by using the vertical-line test. If it is, use the graph to find:(a) The domain and range (b) The intercepts, if any (c) Any symmetry with respect to the x-axis, the y-axis, or the originarrow_forward1. In the figure below, find the number(s) "c" that Rolle's Theorem promises (guarantees). 10 For Problems 2–4, verify that the hypotheses of Rolle's Theorem are satisfied for each of the func- tions on the given intervals, and find the value of the number(s) "c" that Rolle's Theorem promises. 2. (a) f(x) = x² on |-2, 2 (b) f(x) = x² =5x +8 on [0,5] 3. (a) f(x) = sin(x) on [0, 7] (b) f(x) = sin(x) on [A,57]| 4. (a) f(x) = r-x+3 on | 1,1] (b) f(x) = x cos(x) on (0, [0, 1arrow_forward
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