find the sum of sigma from n =1 to infinity of [arctan(n+1)- arctann]
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Kind regards
how did u get 1/(1-x)^2?
Remember that... Kind regards
Hello, twilightstr! Find the sum of: . We have: . . . . . .
Aren't you forgetting the term
Hello, Spec! Aren't you forgetting the term ? Yes, I did! I forgot to look at the other end of the series . . . *blush*
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