Question 835475
Find the product or quotient using polar form. 
2(cos π/8+ isinπ/8) • 2(cos π/10+ i sin π/10)
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= 4cis[(pi/8)+(pi/10)]
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= 4cis[(18pi/(80)]
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= 4cis(9pi/40)
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Cheers,
Stan H.
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