Identify the choice that best completes the statement or answers the question. Multiple Choice: 1. If A(x) = x sinx, find f' a. b. 0 C. NA d. 1 - 2. If A(x) = 2 sin x ), find f a. 2 b. 6 C. d. 3 3. If A(x) = sin x find f* COS X a. b. -2 C. d. 2 4. Find the slope of the tangent to the curve y = xcos 3x at X = a. b . -1 C. 1 d. 3 5. Find the slope of the tangent to the curve y = COS X at x = 1 . X a. b. Al C. d. -1 6. Find the slope of the tangent to the curve y = 3x cos x at X = I. a. -3 b. 0 C. 3 d. 6 7. If y = 2 cos x + sin 2x, find y" at x =- a. -2 b. -6 C. 0 d. 1