\sqrt{\frac{1 - sinA}{1 + sinA}} = ?

Foundation

Mathematics Foundation

Introduction to Trigonometry

Question

$\sqrt{\frac{1 - sinA}{1 + sinA}} = ?$

none of these

sec A - tan A

sec A tan A

sec A + tan A

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$\sqrt{\frac{1 - sinA}{1 + sinA}} = \sqrt{\frac{{(1 - sinA)}^{2}}{1 - \sin^{2} A}} = \frac{(1 - sinA)}{cosA} = secA - tanA$