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Int Frac{X^3}{A^2+X^2}Dx Frac{1}{2}X^2 \Frac{1}{2}A^2\Ln|A^2+X^2|

Front \[\int \frac{x^3}{a^2+x^2}dx \]
Back \[ \frac{1}{2}x^2-\frac{1}{2}a^2\ln|a^2+x^2|\]

Tags: rational

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