If are the roots of unity, then equal . Find . | CGP Edu

Maths Complex Number JEE Main 2020 Numeric Response

Published by: CGP EDU Academic Team

Published on: August 12, 2026

If are the roots of unity, then equal . Find .

Text Solution

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The correct answer is:

(1)
Since are the roots of unity, therefore, we have the identity

or

Putting on both sides, we get

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