Integrand size = 13, antiderivative size = 23 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {2 \left (-1+2 x^3\right ) \sqrt {x+x^4}}{9 x^5} \]
[Out]
Time = 0.03 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.43, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {2041, 2039} \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {4 \sqrt {x^4+x}}{9 x^2}-\frac {2 \sqrt {x^4+x}}{9 x^5} \]
[In]
[Out]
Rule 2039
Rule 2041
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \sqrt {x+x^4}}{9 x^5}-\frac {2}{3} \int \frac {1}{x^2 \sqrt {x+x^4}} \, dx \\ & = -\frac {2 \sqrt {x+x^4}}{9 x^5}+\frac {4 \sqrt {x+x^4}}{9 x^2} \\ \end{align*}
Time = 0.16 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.00 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {2 \left (-1+2 x^3\right ) \sqrt {x+x^4}}{9 x^5} \]
[In]
[Out]
Time = 2.60 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87
method | result | size |
trager | \(\frac {2 \left (2 x^{3}-1\right ) \sqrt {x^{4}+x}}{9 x^{5}}\) | \(20\) |
meijerg | \(-\frac {2 \left (-2 x^{3}+1\right ) \sqrt {x^{3}+1}}{9 x^{\frac {9}{2}}}\) | \(20\) |
pseudoelliptic | \(\frac {2 \left (2 x^{3}-1\right ) \sqrt {x^{4}+x}}{9 x^{5}}\) | \(20\) |
risch | \(\frac {\frac {2}{9} x^{3}-\frac {2}{9}+\frac {4}{9} x^{6}}{x^{4} \sqrt {x \left (x^{3}+1\right )}}\) | \(25\) |
default | \(-\frac {2 \sqrt {x^{4}+x}}{9 x^{5}}+\frac {4 \sqrt {x^{4}+x}}{9 x^{2}}\) | \(26\) |
elliptic | \(-\frac {2 \sqrt {x^{4}+x}}{9 x^{5}}+\frac {4 \sqrt {x^{4}+x}}{9 x^{2}}\) | \(26\) |
gosper | \(\frac {2 \left (1+x \right ) \left (x^{2}-x +1\right ) \left (2 x^{3}-1\right )}{9 x^{4} \sqrt {x^{4}+x}}\) | \(31\) |
[In]
[Out]
none
Time = 0.24 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {2 \, \sqrt {x^{4} + x} {\left (2 \, x^{3} - 1\right )}}{9 \, x^{5}} \]
[In]
[Out]
\[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\int \frac {1}{x^{5} \sqrt {x \left (x + 1\right ) \left (x^{2} - x + 1\right )}}\, dx \]
[In]
[Out]
none
Time = 0.32 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.39 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {2 \, {\left (2 \, x^{7} + x^{4} - x\right )}}{9 \, \sqrt {x^{2} - x + 1} \sqrt {x + 1} x^{\frac {11}{2}}} \]
[In]
[Out]
none
Time = 0.27 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=-\frac {2}{9} \, {\left (\frac {1}{x^{3}} + 1\right )}^{\frac {3}{2}} + \frac {2}{3} \, \sqrt {\frac {1}{x^{3}} + 1} \]
[In]
[Out]
Time = 5.33 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83 \[ \int \frac {1}{x^5 \sqrt {x+x^4}} \, dx=\frac {2\,\left (2\,x^3-1\right )\,\sqrt {x^4+x}}{9\,x^5} \]
[In]
[Out]