Home Maths Complex Number Skill Builder If is a cube root of unity, then
Maths Complex Number Skill Builder Single Correct MCQ
Published on: August 13, 2026

If is a cube root of unity, then

A
0
B
1
C
D

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The correct answer is:
A

Given is a cube root of unity , we can simplify the determinant using this identity. Substituting and combining terms shows that two rows (or columns) become linearly dependent.

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