Multiple Choice [K10 - 1 mark per question] Circle the most correct answer to each question. 1. The derivative of y = (3) is: a. y' = 2x(3)2*-1 In 3 C. y' = (32* In(2x) b. y' = (3) 2x (In 3)(2) d. y' = (3)" (In 3)(2) 2. The graph shows the instantaneous rate of change for which of the functions given? a. y = sin x C. y = - sin x b. y = cosx d. y = - COS X 3. Find the slope of the tangent to the curve y = sin x + cosx + x at X = 1 : a. 2 C. O b. It d. 1+ n