Find the derivative of the function: g(x) = 2' cos (x) + V1 -12 Select one: O a. 2xcos lav1-x2 +x -r VI- x2 O b. 2x cos lrV1 -12 - 22 - O c. 2x cos x(x2 4 1) +2 +x x 1 x2 4 1 O d. Undetermined. O e. 1 2 4 1