Question

PLEASE TELL ME THE ANSWER
(sinA / 1+cos A) = ( 1 - cos A / sin A )​
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Answer 1

L.H.S.=

$\frac{sina}{1 + cosa} \\ = \frac{sina(1 - cosa)}{(1 + cosa)(1 - cosa) } \\ = \frac{sina(1 - cosa)}{1 - {cos}^{2} a} \\ = \frac{sina(1 - cosa)}{ {sin}^{2}a } \\ = \frac{(1 - cosa)}{sina}$

= R.H.S.

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