JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

1 Easy

1 of 1

Application +4 | -1

\frac{{1 - {{\tan }^2}\,\,\left( {45^\circ - A} \right)}}{{1 + {{\tan }^2}\,\,\left( {45^\circ - A} \right)}}

is equal to

View answer and explanation

Correct option: A

\sin \,\,2A

Option B (

\frac{a}{b}

) is correct because by applying the componendo and dividendo rule and trigonometric identities, the expression simplifies to

\frac{a}{b}

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