In problems 17 -19, use FTC - 1 to find the derivative of the following functions. tan x 5 17. f (x ) = sin(x3) Vt3 - 4 dt 18. g(x) = t2 Int dt 19. h(x) = Z - 1 dz 2 x2 Jo z2 + 1 In problems 20 - 27, use a method of integration covered this week to find the most general antiderivative. (When using u-sub, be sure to write your "u", "du", and anything else necessary. 20. ( x2 + 7) (2 x5 - 3x2 + 9) dx 3 Vx2 - Vx 21. dx 4 Vx7 72 22 . dx 23. V2 + 3cot x csc2 x dx 4 Vx3 + 2