Part 1: Knowledge / Understanding [10 marks] Identify the choice that best completes the statement or answers the question. Indicate your answer on the grid provided on page 2. 1. If f(x) = sin2(x), find f a. 0 C. b. d. 2. If Ax) = sin x, find f cosX a. 1 C. b. -2 d. 2 3. Find the slope of the tangent to the curve y = 2 sin x at X =- a. C . -1 b. d. 4. Find the slope of the tangent to the curve y = 3x cos x at X = I. a. - 3 C. 3 b. 0 d. 6 5. Find the slope of the tangent to the curve y = 4 sin 2x at x = a. -3 C . 131/3 2 6 d. 9 6. If y = 2 cos x + sin 2x, find y" at x = N/A a. - 2 C . b . - 6 d. 1