Mathematics · Complex Numbers

If a = cos(4π/3) + i sin(4π/3), then the value of (1 + a2)3n is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1(-1)n + 1
2(-1)n23n✓
3123n
4(-1)n

Correct answer

(-1)n23n

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If a = cos(4π/3) + i sin(4π/3), then the value of (1 + a2)3n is:

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If a = cos(4π/3) + i sin(4π/3), then the value of (1 + a2)3n is:

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