The value of , is

Maths Trigonometrical Ratios, Functions and Identities All Topic Question for Revision Test Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

The value of , is

-1

none of these

Text Solution

Verified by Experts

The correct answer is:

Using the standard trigonometric identity:

Apply this identity step-by-step to the expression:

First pair:

Second pair:

Third pair:

Final combination:

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