JEE MATHEMATICS MCQ: COMPLEX NUMBERS

1 Easy

1 of 1

Application +4 | -1

z

is a non-real

{7^{th}}

root of

- 1

, then

{z^{86}} + {z^{175}} + {z^{289}}

is equal to

View answer and explanation

Correct option: B

- 1

Option B (-1) is correct because after simplifying the powers of z using the fact that z⁷ = -1, the expression reduces to -1.

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