In Problems 1–18 use Definition 7.1.1 to find
3.
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A First Course in Differential Equations with Modeling Applications (MindTap Course List)
- 2. Determine the inverse of each function, then state its domain and range.arrow_forwardIn 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'arrow_forward1. Let x=(x) = (². Find xif Exercise (2) a. x₁ =2 b. x₂ = narrow_forward
- only need b, d, f, h, j (non-starred problems). Thank you!arrow_forwardIn Problems 2–4, for the given functions fand g find: (a) (f° g) (2) (b) (g • f)(-2) (c) (fo f) (4) (d) (g ° 8) (-1) 2. f(x) = 3x – 5; g(x) = 1 – 2r 3. f(x) = Vx + 2: g(x) = 2x² + 1 4. f(x) = e"; g(x) = 3x – 2arrow_forward4. Let f-(x) = g(x) = x-5, k-1(10) + 7 = 10 and h(x) = then find: b. Domain of h(x). c. (hof)(2). (Z is the last digit in your ID) d. (kog)(2).arrow_forward
- 4arrow_forward1. Suppose f: A B and W and X are subsets of A. (a) Will it always be true that f(W U X) = f(W) U f(X)? (b) Will it always be true that f(W\ X) = f(W) \ f(X)?arrow_forward3. You wish to fence in a rectangular garden in your back yard, with one side of the garden against the house and that side unfenced (see the figure below). (a) Suppose you have 20 feet of fencing for the garden. Find the dimensions of the garden that yield the largest possible area A of the garden, as follows: i. For half of your group, write A as a function of x alone (without any y's), and note the domain of A. Then find the maximum value of the area A of the garden. ii. For the other half of your group, write A as a function of Y alone (without any x's), and note the domain of A. Then find the maximum value of the area A of the garden. iii. In a complete sentence, tell why the answer in i should be, or should not be, the same as the answer in (ii).arrow_forward
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