JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

1 Easy

1 of 1

Analyzing +4 | -1

2\,\,\cos \,\,\frac{A}{2} = \sqrt {1 + \sin \,\,A} + \sqrt {1 - \sin \,\,A}

, then

\frac{A}{2}

lies between,

\left( {n \in Z} \right)

View answer and explanation

Correct option: B

2n\;\pi - \frac{\pi }{4}

and

2n\;\pi + \frac{\pi }{4}

Option C (

\cot B

) is correct because simplifying the given expression using trigonometric identities leads to this result.

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