1. If A(x) = x sinx, find N/A a. b. 0 C. d. 1 - N/A 2. If A(x) - 2( sin3x], find f'[ = ]. a. 2 b. 6 C. d. 3 3. If A(x) = sin x COS X find " ( =). a. 1 b. -2 C. d. 2 4. Find the slope of the tangent to the curve y = xcos 3x at X =- w/ a. 0 b . -1 C. d. 3 5. Find the slope of the tangent to the curve y = COS X X at X = II . a. b. C. d. -1 6. Find the slope of the tangent to the curve y = 3x cosx at X = I. a. -3 b. 0 C. 3 d. 6 7. If y = 2 cosx + sin 2x, find y" at x = N/A a. -2 b. - 6 C. 0 d. 8. If y = cos ZX 4 , find y" at x = I. a. 1 b. 0 C. -1 d. Page 1 of 6