Use De Moivre's theorem to simplify the following. Leave your answers in the polar formrcis θ.

a) [2(cos π/4 +isin π/4)]^5

b) [√2(cos π/6 -isin π/6)]^4

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- June 14th 2006, 03:15 AMnoriveaUse complex numbers to solve problems
Use De Moivre's theorem to simplify the following. Leave your answers in the polar form

*r*cis θ.

a) [2(cos π/4 +*i*sin π/4)]^5

b) [√2(cos π/6 -*i*sin π/6)]^4 - June 14th 2006, 03:56 AMnath_quam
a) 32cis 5pie/4

b) 4cis -2pie/3