calculusderivatives
posted by hailey .
y=cos^3(12theta)
find derivative using chain rule

y = x^3
x = cos(z)
z = 12 teta
dy/dtheta =
(dy/dz) (dz/dtheta) =
(dy/dx) (dx/dz) (dz/dtheta) =
3 x^2 [sin(z)] 12 =
36 cos^2(z) sin(z) =
36 cos^2(12 theta) sin(12 theta)
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