\sqrt{\frac{1 + cosA}{1

Foundation

Mathematics Foundation

Introduction to Trigonometry

Question

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

none of these

cosec A – cot A

cosec A cot A

cosec A + cot A

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$\sqrt{\frac{1 + cosA}{1 - cosA}} = \sqrt{\frac{{(1 + cosA)}^{2}}{1 - \cos^{2} A}} = \frac{(1 + cosA)}{sinA} = cosecA + cotA$