For f(x)= 3 tanx+xcosx, find f (x) . A. f'(x)= 3sec²x-sinx 3 sec x- sinx B. f'(x)= 3sec x-xsinx+cc c. f'(x)= 3sec² x+xsinx+c С.

If f(x) = 7+ 3 – 3x², find f'( – 5). -

Find f'(x) and simplify. f(x) = 5x4 Inx Which of the following shows the correct application of the product rule? O A. (5x¹) (-)-(Inx) (20x²³) (1) X B. (5x4) (20x³) + (In x) O c. (5x²) (+) + (Inx) (20x³) X O D. f'(x) = () (201¹)

Find f'(x) and simplify. x²+2 7x-8 f(x) = Which of the following shows the correct application of the quotient rule? O A. O B. O C. O D. f'(x) = (7x-8)(2x) - (x²+2) (7) [x² +2]² (7x-8)(2x) - (x²+2) (7) [7x − 8]² (x²+2) (7)-(7x-8)(2x) [x²+2]² (x² + 2) (7) − (7x − 8)(2x) [7x-8]²

Consider the function. Find f'(x). f'(x) = Find F"(x). F"(x) = Find f"(-7) and f"(3). f"(-7) = f"(3) = f(x) = x³ = 3x² + 7 Determine whether the function f(x) is concave up or concave down at the indicated points. (a) x = -7 (b)x= 3 concave up concave down O concave up O concave down

Determine f '(x) for f (x)=(3x2+1)2

Find f''(x) for the function. In x 8x f(x) = O A. O B. O C. O D. -7-2 Inx 9x3 - 3+2 Inx 3 8x³ In x 8x³ -3-2 Inx 8x

3 find f '(x). x2 7 If f(x) = 7+ - +

Find f'(x) and simplify. X x + 36 f(x) = Which of the following shows the correct application of the quotient rule? O A. O B. O C. O D. f'(x) = (x)(1)-(x +36)(1) [×]² (x)(1) - (x +36)(1) [x+36]² (x+36)(1) − (x)(1) [x]² (x+36)(1)-(x)(1) [x+36]²

Find f'(x) and simplify. f(x) = 2x5 In x Which of the following shows the correct application of the product rule? OA. (2x5) (10x) + (In x) OB. (2x²) [:) + (1x) (10x¹) X ○ C. O D. (1) (2x³) (1) - (Inx) (10x¹) X (+) (10x¹) X