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$\frac{\sqrt{1 - \sin A}}{1 + \sin A} = ?$

1
$\frac{1}{\cos A} - \tan A$
2
$C o s A - \frac{1}{\tan A}$
3
$\frac{1}{\cos A} - \frac{1}{\tan A}$
4
cotA - tan A

Answer:- 1

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