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OpenStudy (anonymous):
81(cos(3pi/3)+isin(3pi/3) a.find the fourth root of 81 b.divide the angle in the problem by 4 to find the first arguement
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OpenStudy (anonymous):
fourth root of 81 is 3 as 3x 3x 3x 3 = 3^4 = 3
OpenStudy (anonymous):
Can you please explain the meaning of b part more exactly.??
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