need a assistance

Valencia6081

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Apr 11, 2015
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De Moivre’s theorem states, “If z = r(cos u + i sin u), then zn = rn(cos nu + i sin nu).”• Verify de Moivre’s theorem for n = 2.a. Provide a correct proof that includes written justification for each step.
 
De Moivre’s theorem states, “If z = r(cos u + i sin u), then zn = rn(cos nu + i sin nu).”• Verify de Moivre’s theorem for n = 2.a. Provide a correct proof that includes written justification for each step.

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