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Question

Calculate, 4112i32.

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Solution

z=(32i32)1/4
z4=(32i32)=reiθ
r=94+34=3
θ=tan1(32×23)=π/6=7π/6
z4=3ei7π/6
z=3ei7π/24
3(cos7π24+isin7π24)

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