please answer this!

Also the options for question 2a) are -4, -2, 4, 6

and the options for 2b) are 6, 0, 12, 3

If f: R - R is a differentiable function and g(x) = f(cos-1x) , then g'(0) = 0 - f' (2) of'(1) O -f'(0) 01 . f' (#) Question 2 An object is moving on the number line. Its position at time t is given by the function s(t) =13-612 +9t. Choose the correct answers from the dropdown menus. (a) The average velocity of the object on the interval [2,5] is [ Select ] (b) The instantaneous acceleration at =4 is [ Select ]