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2005 Alabama ARML TST Problems/Problem 7

Revision as of 09:45, 11 December 2007 by 1=2 (talk | contribs) (New page: ==Problem== Find the sum of the infinite series: <center><math>3+\frac{11}4+\frac 94 + \cdots + \frac{n^2+2n+3}{2^n}+\cdots</math>.</center> ==Solution== {{solution}} ==See Also== * [...)
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Problem

Find the sum of the infinite series:

$3+\frac{11}4+\frac 94 + \cdots + \frac{n^2+2n+3}{2^n}+\cdots$.

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.

See Also

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