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2Â¥: Originally posted by Edstrayer at 2014-04-14 13:24:06
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3Â¥: Originally posted by lilihurry at 2014-04-14 16:19:16
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[img]http://latex.codecogs.com/gif.latex?\begin{eqnarray*}\int\frac{1}{\sqrt[\uproot{5}4]{x^3+}}dx&\stackrel{u=-x^3}{=}&\int\frac{1}{\sqrt[\uproot{5}4]{1-u}}\left(-\frac{1}{3}u^{-\frac{2}{3}}\right)du\\&space;&=&-\frac{1}{3}\int&space;u^{-\frac{2}{3}}(1-u)^{-\frac{1}{4}}du\\&space;\end{eqnarray*}[/img]
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