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OpenStudy (ryanr504):
1. (4(cos(45)+i sin(45)))^3 use de moivre theorem
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OpenStudy (ryanr504):
Can some please help i have finals tomorrow and i not great with this
OpenStudy (loser66):
What is the Moivre Theorem?
OpenStudy (ryanr504):
(cos θ + i sin θ)n = cos nθ + i sin nθ.
OpenStudy (loser66):
ok, so just apply
OpenStudy (loser66):
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