`sum_(r=0)^n (-1)^r C(n,r)((1/(2^r))+((3^r)/(2^(2r)))+((7^r)/(2^(3r)))+...oo` is equal to

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`sum_(r=0)^n (-1)^r C(n,r)((1/(2^r))+((3^r)/(2^(2r)))+((7^r)/(2^(3r)))+...oo` 0:03:13

`sum_(r=0)^n (-1)^r C(n,r)((1/(2^r))+((3^r)/(2^(2r)))+((7^r)/(2^(3r)))+...oo` is equal to

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