4. Determine the following derivatives without simplifying either before or after. (YOU MAY USE ANY TECHNIQUE COVERED IN THE COURSE TO EVALUATE THE DERIVATIVES.) (AT MOST 75% CREDIT IF YOU SIMPLIFY EITHER BEFORE OR AFTER.) a. [sinh(x) (x] + 7)] 10 b. In(x3 - 4r + 13) + sin(ex) d x 10 C. [sin' (7.x)] 10 d. (an(+ )dr 10