turunan fungsi dari f(x) = 2 sin (x²+4)

jawab

y = 2 sin (x² + 4)

u = x² + 4
du/dx = 2x

y = 2 sin u
dy/du = 2 cos u

y' = dy/dx

f'(x) = y' = dy/dx = dy/du. du/dx

f'(x) = 2 cos u. (2x)
f '(x) = 4x . cos (x² + 4)