How do you prove $sin theta cot theta =cos theta$ ?

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Answer 1 · 2015-06-16T09:54:28

Proof

We know that $color(blue)(cottheta = cos theta/sin theta$

Left Hand Side

= $sintheta*cot theta$

= $cancel(sintheta)*(cos theta/cancel(sintheta))$

= $cos theta$ = Right Hand Side

Hence proved.

How do you prove sin theta cot theta =cos thetasin theta cot theta =cos theta?