tentukan dy/dx dari : y : 6 sin kuadrat x

dy/dx = 6.2 cos x .sin x  = 12 cos x sin x

gunakan chain's rule :
y = 6 sin²x = 6 (sin(x))²
dy/dx = 6 (2sin(x)) cos(x) = 12 sin(x) cos(x) = 6 sin(2x)