Sum of ten terms of the series cot^-1 cot^-1 7 ...is

shivu kumar t

May 29, 2017, 12:51 p.m.

Answers!

Davneet Singh

May 30, 2017, 1:45 p.m.

Hello

I can't understand the series, can you please add some + signs or upload a photo of the question?

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