सिद्ध कीजिए कि- \[ \frac{\sin A+\sin 2 A}{1+\cos A+\cos 2 A}=\tan A \]
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0सिद्ध कीजिए कि-
\[
\frac{\sin A+\sin 2 A}{1+\cos A+\cos 2 A}=\tan A
\]
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