Christian M.

asked • 04/30/17

10sqrt(3)cis4pi/3

must be in a+bi form as answer

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Mark M. answered • 04/30/17

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10√3 cis 4π/3
10√3(cos 4π/3 + i sin 4π/3)
10√3(-1/2 - i√3/2)
 
Can you simplify?
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Christian M.

I somewhat know how to simplify. The question states express 10sqrt(3)cis4pi/3 in the form a+bi. So this would be in that form correct?
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04/30/17

Mark M.

You must distribute the 10√3 to convert to a + bi form.
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04/30/17

Christian M.

when i distribute, i get -8.66-15i. Is this correct?
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04/30/17

Mark M.

Yes, depending on the format required, -5√3 would be more precise.
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04/30/17

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