Askiitians Expert Soumyajit IIT-Kharagpur
Last Activity: 14 Years ago
Dear Manan Bhavsar,
Ans:- The series is a GP series with common ratio m
Then it's sum is=(1-m^n)/(1-m)
Now as m is the n th root of unity then, m^n=0
Hence the sum is 0 (ans).
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Soumyajit Das IIT Kharagpur