Derivative of cos 3x 1 July 8, 2019 16 32 64 128 Derivative of cos 1 3x 2 Derivative of cos x 3x 1 Derivative of y=cos(1-3x) 19th derivative of cos(3x Derivative of 1-cos3x Derivative of 1/3 cos^3x Derivative of cos 1 4x 3 3x Find the 15th derivative of y cos 3x Derivative of cos Derivative of cos inverse x Derivative of cosec x