SOLUTION: find zw and (z)/(w). Leave answer in polar form z=cos 205 degress + i sin 205 degrees w= cos 85 degrees + i sin 85 degrees

Question 305869: find zw and (z)/(w). Leave answer in polar form
z=cos 205 degress + i sin 205 degrees
w= cos 85 degrees + i sin 85 degrees
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
find zw and (z)/(w). Leave answer in polar form
z=cos 205 degress + i sin 205 degrees = cis(205)
w= cos 85 degrees + i sin 85 degrees = cis(85)
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zw = cis(205+85) = cis(290)
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z/w = cis(205-85) = cis(120)
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Cheers,
Stan H.
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