$$\int_{0}^{\infty}\left ( \frac{2x+ 1}{x^{2}}- \frac{3}{xe^{x}}- \frac{1}{x^{2}e^{x}} \right ){\rm d}x= 1{\it ?}$$
6/17/2019 normal
\[\int_0^\infty(\frac{2x+1}{x^2}-\frac{3}{xe^x}-\frac{1}{x^2e^x}){\rm d}x=1{\it ?}\]
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Started By DOTOANNANG, 04-08-2021 - 12:41
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