Home Maths Trigonometrical Ratios, Functions and Identities Trigonometrical Ratios of Multiple and Sub-Multiple Angles If is a root of , , then is equal to
Maths Trigonometrical Ratios, Functions and Identities Trigonometrical Ratios of Multiple and Sub-Multiple Angles Single Correct MCQ
Published on: August 12, 2026

If is a root of , , then is equal to

A
B
C
D

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Text Solution

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The correct answer is:
B

Since α α is a root of

∴ ∴

⇒ ⇒

⇒ ⇒

.

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