Question

Turunan pertama fungsi f(x) 4cos²(x- π)

Answer 1

Verified answer

Jawab

y = 4 cos² (x - π)

y= 2 [ 2 cos² (x - π)
y = 2 [ cos 2(x -π) +1]
y = 2 cos (2x - 2π) + 2

y' = - 4  sin (2x - 2π)
y' = - 4 sin 2(x - π)
y' = - 4 ( 2 sin (x - π). cos (x- π))
y' = - 8 sin (x - π) cos (x - π)