SOLUTION: Find the product or quotient using polar form. 2cis(40) • 4cis(20)

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Question 835474: Find the product or quotient using polar form. 2cis(40) • 4cis(20)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the product or quotient using polar form. 2cis(40) • 4cis(20)
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= 8(cis(60) = 8(cos(60)+isin(60))
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= 8[(1/2) + i(sqrt(3)/2)]
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= 4 + 4sqrt(3)i
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Cheers,
Stan H.
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