If and then is equal to

Maths Trigonometrical Ratios, Functions and Identities Trigonometrical Ratios of Multiple and Sub-Multiple Angles Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Text Solution

Verified by Experts

The correct answer is:

Given that …. .(i)

and ….. (ii)

Squaring,

and

Adding, 2+ 2

⇒ ⇒ ⇒ ⇒

⇒ ⇒

⇒ ⇒ ⇒ ⇒

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