Wolfram Mathematica Online Integrator
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Integrate[1/(1 + E^(2*x) + E^(3*x)), x] ==
RootSum[1 + #1^2 + #1^3 & ,
(x - Log[-E^x + #1])/(3 + #1^2) & ]
1
Integrate[---------------, x] ==
2 x 3 x
1 + E + E x
2 3 x - Log[-E + #1]
RootSum[1 + #1 + #1 & , ----------------- & ]
2
3 + #1
Time to compute: 0.03 second
: Log[x]: natural logarithm [properties]
RootSum[f, form]: sum over the roots of a polynomial
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