Home Maths Trigonometrical Ratios, Functions and Identities All Topic Question for Revision Test , where is true if and only if
Maths Trigonometrical Ratios, Functions and Identities All Topic Question for Revision Test Single Correct MCQ
Published on: August 12, 2026

, where is true if and only if

A
B

C
D

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The correct answer is:
B

We know that

and

and

and

and

and and

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