Trigonometry
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Write the following trigonometric expression in terms of sine and cosine. Express your answer in terms of xxx only.
(cosx+sinx)(secx−cscx)\left(\cos x+\sin x\right)\left(\sec x-\csc x\right)(cosx+sinx)(secx−cscx)
(sin2x−cos2x)sinx\frac{\left(\sin^2x-\cos^2x\right)}{\sin x}sinx(sin2x−cos2x)
(sin2x+cos2x)cosx\frac{\left(\sin^2x+\cos^2x_{}\right)}{\cos x}cosx(sin2x+cos2x)
(sin2x−cos2x)sinx⋅cosx\frac{\left(\sin^2x-\cos^2x\right)}{\sin x\cdot\cos x}sinx⋅cosx(sin2x−cos2x)
(sin2x+cos2x)sinx⋅cosx\frac{\left(\sin^2x+\cos^2x\right)}{\sin x\cdot\cos x}sinx⋅cosx(sin2x+cos2x)