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7(cos330+ i sin330)

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1089

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7(cos330+ i sin330)

Guest Dec 11, 2014

Best Answer

+118703

+10

or

$7(cos330+ i sin330)\; = \;7(cos(-\pi/6)+isin(-\pi/6)) = 7e^{-\pi i/6}$

Melody Dec 11, 2014

2⁺⁰ Answers

+130477

+5

7(cos330+ i sin330) =

7( √3/2 - 1/2i) =

[ 7√3 - 7i ] / 2 =

(7/2)√3 - (7/2) i

CPhill Dec 11, 2014

+118703

+10

Best Answer

or

$7(cos330+ i sin330)\; = \;7(cos(-\pi/6)+isin(-\pi/6)) = 7e^{-\pi i/6}$

Melody Dec 11, 2014

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