The correct answer is A. Given that ….. (i) and …. .(ii) ….. (iii) Solving (i) and (iii), we get and Now, .

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Maths Trigonometrical Ratios, Functions and Identities Fundamental Trigonometrical Ratios and Functions, Trigonometrical Ratio of Allied Angles Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

If then

– 4

± 4

None of these

Text Solution

Verified by Experts

The correct answer is:

Given that ….. (i)

and …. .(ii)

….. (iii)

Solving (i) and (iii), we get and

Now, .

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