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http://forum.yourequations.com/viewtopic.php?f=4&t=12
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\int_{0}^{1}\frac{x^{4}\left(1-x\right)^{4}}{1+x^{2}}dx=\frac{22}{7}-\piu=\frac{x}{y}
\int_{0}^{1}\frac{x^{4}\left(1-x\right)^{4}}{1+x^{2}}dx=\frac{22}{7}-\piu=\frac{x}{y}