Derivative of cos 3x 1 July 8, 2019 16 32 64 128 Find the 15th derivative of y cos 3x Derivative of cos 1 3x 2 19th derivative of cos(3x) Derivative of 1 3 cos 3x Derivative of cos 1 4x 3 3x Find the 10th derivative of y cos 3x Derivative of cos inverse x Derivative of cos Derivative of inverse cosine