Let be the imaginary cube root of unity and where are un…

Maths Complex Number Skill Builder Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Let be the imaginary cube root of unity and where are unequal real numbers. Then the value of equals:

Text Solution

Verified by Experts

The correct answer is:

Given

Since and ,

Now use identity:

Given equation implies:

So multiplying both sides by :

Hence,

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