7. Find f' (x) for the function f (x) = V2x2 - 8. X -2x 2x 2x 2x [A] Vx2-8 [B] Vx2-8 [C] V2x2-4 [D] V2x2-8 [E] Vx-2 8. Find the derivative of the function p(x) = sin(n(x2 - 2)) . [A] 2xx sin (nx2 - 21t) [B] 27 sin(x2 - 2) [C] x cos(x2 - 2) [D] 2xx cos (1x2 - 21) [E] cos(x2 - 21)