Trigonometry
Write the following trigonometric expression in terms of sine and cosine. Express your answer in terms of xxx only.
cotx−secx\cot x-\sec xcotx−secx
cos2x−sinxsinx⋅cosx\frac{\cos^2x-\sin x}{\sin x\cdot\cos x}sinx⋅cosxcos2x−sinx
cos2x+sinxsinx⋅cosx\frac{\cos^2x+\sin x}{\sin x\cdot\cos x}sinx⋅cosxcos2x+sinx
cos2x−sinxcosx\frac{\cos^2x-\sin x}{\cos x}cosxcos2x−sinx
cos2x−sinxsinx\frac{\cos^2x-\sin x}{\sin x}sinxcos2x−sinx