What is (cosθ + i sinθ)⁻ⁿ?
University of Ilorin MTH101 2026-exam past question
- cos(nθ) + i sin(nθ)
- cos(nθ) − i sin(nθ)
- cos(−nθ) − i sin(−nθ)
- −cos(nθ) + i sin(nθ)
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