alleryStart learning →For an integer n, de Moivre's formula gives (cos θ + i sin θ)ⁿ equal to what?
An cos θ + i n sin θ
Bcos nθ + i sin nθ
Ccos θ + i sin nθ
Dcosⁿθ + i sinⁿθ
Answer & Solution
Correct answer: B. cos nθ + i sin nθ
De Moivre's formula states that raising cos θ + i sin θ to the integer power n multiplies the angle by n.
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