\(1+2\left(\frac{1}{2}\right)+3\left(\frac{1}{4}\right)+4\left(\frac{1}{8}\right)+...+n\left(\frac{1}{2^{n-1}}\right)+...=?\)
\(1+2\left(\frac{1}{2}\right)+3\left(\frac{1}{4}\right)+4\left(\frac{1}{8}\right)+...+n\left(\frac{1}{2^{n-1}}\right)+...=?\)
Created on: 2007
Last update: 2024-12-05 16:14:19+0000
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