Use De Moivre's theorem to find (√3+i)^3
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r=(3+1)^1/2=4^1/2=2 √3+i=2(√3/2+i/2) =2(cosπ/6+i sinπ/6) (√3+i)^3 =2^3(cos 3π/6+i sin 3π/6) =8(cosπ/3+i sin π/3) =8(1/2+i√3/2) =4+4√3
Sunny1302:
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This is right answer.
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