Wolfram Mathematica Online Integrator
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Integrate[x^2/(a^4 - x^4), x] ==
-(2*ArcTan[x/a] + Log[-a + x] - Log[a + x])/(4*a)
2
x
Integrate[-------, x] ==
4 4
a - x x
-(2 ArcTan[-] + Log[-a + x] - Log[a + x])
a
-----------------------------------------
4 a
Time to compute: < 0.01 second
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