Class 11Mathematics1 Complex Numbers and Quadratic Equations: Complex NumbersDe Moivre's theorem and Roots of unity
MediumIf $Z = r(\cos \theta + i \sin \theta), (\theta \neq -\pi / 2)$ is a solution of $x^3 = i$,then $r^9(\cos \theta + i \sin \theta)^9 = $
- A$\frac{\sqrt{3}}{2} + \frac{1}{2} i$
- B$1$
- C$-i$
- D$\frac{-\sqrt{3}}{2} + \frac{1}{2} i$
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DifficultMHT CET 2026
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