Teaching UP TGT Mock Test Series 2025 Mathematics Complex Numbers De Moivre's Theorem

(sin θ + i cos θ)n is equal to

1
cos nθ + i sin nθ 
2
sin nθ + i cos nθ
3
cos \(n(\frac{\pi}{2}\ -\ \theta)\) + i sin \(n(\frac{\pi}{2}\ -\ \theta)\)
4
None of these
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