I need help with question 39 in Section 4.1, page 284, of the James Stewart Calculus Eighth Edition textbook. I am trying to find the critical numbers for the function provided.
![21. c0phx x>0
284
CHAPTER 4
Applications of Differentia
37. h(t)= t3/4
211/4
- 2r1/4
38. g(x)= 4
39. F(x)= x4/5(x4)
40. g(0)=40
41. f(0)= 2 cos 0 sin 0
42. h(t) = 3t
43. f(x)= xe
2
44. f(x)= x
45-46 A formula for the derivative of a function
How many critical numbers does f have?
10
45. f'(x)= 5e0sinx-1 46. f'(x)
1
47-62 Find the absolute maximum and absolute
values of f on the given interval.
12 + 4x - x, [0, 5]
47. f(x)
48. f(x) = 5 +54x - 2x3, [0, 4]
49. f(x) 2x-3x2-12x + 1, [-2, 3]
w
50. f(x)= x- 6x2+ 5, [-3, 5]
51. f(x) 3x-4x-12x2 + 1, [-2, 31
31](https://content.bartleby.com/qna-images/question/9b9bfc7b-5e86-435c-b9dd-a07d54ff6a7e/73c5e290-8d32-4bb9-a910-4ac94a93a465/t4wl08f.jpeg)
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