Integrand size = 22, antiderivative size = 113 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\frac {-5 A b+2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}-\frac {5 A b-2 a B}{2 a^3 \sqrt {a+b x^2}}+\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{2 a^{7/2}} \]
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Time = 0.06 (sec) , antiderivative size = 113, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.227, Rules used = {457, 79, 53, 65, 214} \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{2 a^{7/2}}-\frac {5 A b-2 a B}{2 a^3 \sqrt {a+b x^2}}-\frac {5 A b-2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}} \]
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Rule 53
Rule 65
Rule 79
Rule 214
Rule 457
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx,x,x^2\right ) \\ & = -\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}+\frac {\left (-\frac {5 A b}{2}+a B\right ) \text {Subst}\left (\int \frac {1}{x (a+b x)^{5/2}} \, dx,x,x^2\right )}{2 a} \\ & = -\frac {5 A b-2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}-\frac {(5 A b-2 a B) \text {Subst}\left (\int \frac {1}{x (a+b x)^{3/2}} \, dx,x,x^2\right )}{4 a^2} \\ & = -\frac {5 A b-2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}-\frac {5 A b-2 a B}{2 a^3 \sqrt {a+b x^2}}-\frac {(5 A b-2 a B) \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^2\right )}{4 a^3} \\ & = -\frac {5 A b-2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}-\frac {5 A b-2 a B}{2 a^3 \sqrt {a+b x^2}}-\frac {(5 A b-2 a B) \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^2}\right )}{2 a^3 b} \\ & = -\frac {5 A b-2 a B}{6 a^2 \left (a+b x^2\right )^{3/2}}-\frac {A}{2 a x^2 \left (a+b x^2\right )^{3/2}}-\frac {5 A b-2 a B}{2 a^3 \sqrt {a+b x^2}}+\frac {(5 A b-2 a B) \tanh ^{-1}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{2 a^{7/2}} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 99, normalized size of antiderivative = 0.88 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\frac {-3 a^2 A-20 a A b x^2+8 a^2 B x^2-15 A b^2 x^4+6 a b B x^4}{6 a^3 x^2 \left (a+b x^2\right )^{3/2}}+\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{2 a^{7/2}} \]
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Time = 2.92 (sec) , antiderivative size = 96, normalized size of antiderivative = 0.85
method | result | size |
pseudoelliptic | \(-\frac {-5 \left (b \,x^{2}+a \right )^{\frac {3}{2}} x^{2} \left (A b -\frac {2 B a}{5}\right ) \operatorname {arctanh}\left (\frac {\sqrt {b \,x^{2}+a}}{\sqrt {a}}\right )+\frac {20 x^{2} \left (-\frac {3 x^{2} B}{10}+A \right ) b \,a^{\frac {3}{2}}}{3}+\left (-\frac {8 x^{2} B}{3}+A \right ) a^{\frac {5}{2}}+5 A \sqrt {a}\, b^{2} x^{4}}{2 \left (b \,x^{2}+a \right )^{\frac {3}{2}} a^{\frac {7}{2}} x^{2}}\) | \(96\) |
default | \(B \left (\frac {1}{3 a \left (b \,x^{2}+a \right )^{\frac {3}{2}}}+\frac {\frac {1}{a \sqrt {b \,x^{2}+a}}-\frac {\ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {b \,x^{2}+a}}{x}\right )}{a^{\frac {3}{2}}}}{a}\right )+A \left (-\frac {1}{2 a \,x^{2} \left (b \,x^{2}+a \right )^{\frac {3}{2}}}-\frac {5 b \left (\frac {1}{3 a \left (b \,x^{2}+a \right )^{\frac {3}{2}}}+\frac {\frac {1}{a \sqrt {b \,x^{2}+a}}-\frac {\ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {b \,x^{2}+a}}{x}\right )}{a^{\frac {3}{2}}}}{a}\right )}{2 a}\right )\) | \(152\) |
risch | \(-\frac {A \sqrt {b \,x^{2}+a}}{2 a^{3} x^{2}}+\frac {5 \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {b \,x^{2}+a}}{x}\right ) A b}{2 a^{\frac {7}{2}}}-\frac {\ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {b \,x^{2}+a}}{x}\right ) B}{a^{\frac {5}{2}}}+\frac {13 \sqrt {\left (x +\frac {\sqrt {-a b}}{b}\right )^{2} b -2 \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}\, A b}{12 a^{3} \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}-\frac {7 \sqrt {\left (x +\frac {\sqrt {-a b}}{b}\right )^{2} b -2 \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}\, B}{12 a^{2} \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}-\frac {13 \sqrt {\left (x -\frac {\sqrt {-a b}}{b}\right )^{2} b +2 \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}\, A b}{12 a^{3} \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}+\frac {7 \sqrt {\left (x -\frac {\sqrt {-a b}}{b}\right )^{2} b +2 \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}\, B}{12 a^{2} \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}+\frac {\sqrt {\left (x -\frac {\sqrt {-a b}}{b}\right )^{2} b +2 \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}\, A}{12 a^{3} \left (x -\frac {\sqrt {-a b}}{b}\right )^{2}}-\frac {\sqrt {\left (x -\frac {\sqrt {-a b}}{b}\right )^{2} b +2 \sqrt {-a b}\, \left (x -\frac {\sqrt {-a b}}{b}\right )}\, B}{12 a^{2} b \left (x -\frac {\sqrt {-a b}}{b}\right )^{2}}+\frac {\sqrt {\left (x +\frac {\sqrt {-a b}}{b}\right )^{2} b -2 \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}\, A}{12 a^{3} \left (x +\frac {\sqrt {-a b}}{b}\right )^{2}}-\frac {\sqrt {\left (x +\frac {\sqrt {-a b}}{b}\right )^{2} b -2 \sqrt {-a b}\, \left (x +\frac {\sqrt {-a b}}{b}\right )}\, B}{12 a^{2} b \left (x +\frac {\sqrt {-a b}}{b}\right )^{2}}\) | \(595\) |
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Time = 0.29 (sec) , antiderivative size = 349, normalized size of antiderivative = 3.09 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\left [-\frac {3 \, {\left ({\left (2 \, B a b^{2} - 5 \, A b^{3}\right )} x^{6} + 2 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{4} + {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x^{2}\right )} \sqrt {a} \log \left (-\frac {b x^{2} + 2 \, \sqrt {b x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) - 2 \, {\left (3 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{4} - 3 \, A a^{3} + 4 \, {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x^{2}\right )} \sqrt {b x^{2} + a}}{12 \, {\left (a^{4} b^{2} x^{6} + 2 \, a^{5} b x^{4} + a^{6} x^{2}\right )}}, \frac {3 \, {\left ({\left (2 \, B a b^{2} - 5 \, A b^{3}\right )} x^{6} + 2 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{4} + {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x^{2}\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {-a}}{\sqrt {b x^{2} + a}}\right ) + {\left (3 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{4} - 3 \, A a^{3} + 4 \, {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x^{2}\right )} \sqrt {b x^{2} + a}}{6 \, {\left (a^{4} b^{2} x^{6} + 2 \, a^{5} b x^{4} + a^{6} x^{2}\right )}}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 1608 vs. \(2 (99) = 198\).
Time = 21.73 (sec) , antiderivative size = 1608, normalized size of antiderivative = 14.23 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\text {Too large to display} \]
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Time = 0.19 (sec) , antiderivative size = 117, normalized size of antiderivative = 1.04 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=-\frac {B \operatorname {arsinh}\left (\frac {a}{\sqrt {a b} {\left | x \right |}}\right )}{a^{\frac {5}{2}}} + \frac {5 \, A b \operatorname {arsinh}\left (\frac {a}{\sqrt {a b} {\left | x \right |}}\right )}{2 \, a^{\frac {7}{2}}} + \frac {B}{\sqrt {b x^{2} + a} a^{2}} + \frac {B}{3 \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} a} - \frac {5 \, A b}{2 \, \sqrt {b x^{2} + a} a^{3}} - \frac {5 \, A b}{6 \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} a^{2}} - \frac {A}{2 \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} a x^{2}} \]
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Time = 0.29 (sec) , antiderivative size = 101, normalized size of antiderivative = 0.89 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\frac {{\left (2 \, B a - 5 \, A b\right )} \arctan \left (\frac {\sqrt {b x^{2} + a}}{\sqrt {-a}}\right )}{2 \, \sqrt {-a} a^{3}} + \frac {3 \, {\left (b x^{2} + a\right )} B a + B a^{2} - 6 \, {\left (b x^{2} + a\right )} A b - A a b}{3 \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} a^{3}} - \frac {\sqrt {b x^{2} + a} A}{2 \, a^{3} x^{2}} \]
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Time = 5.87 (sec) , antiderivative size = 126, normalized size of antiderivative = 1.12 \[ \int \frac {A+B x^2}{x^3 \left (a+b x^2\right )^{5/2}} \, dx=\frac {\frac {B}{3\,a}+\frac {B\,\left (b\,x^2+a\right )}{a^2}}{{\left (b\,x^2+a\right )}^{3/2}}-\frac {B\,\mathrm {atanh}\left (\frac {\sqrt {b\,x^2+a}}{\sqrt {a}}\right )}{a^{5/2}}-\frac {10\,A\,b}{3\,a^2\,{\left (b\,x^2+a\right )}^{3/2}}-\frac {A}{2\,a\,x^2\,{\left (b\,x^2+a\right )}^{3/2}}+\frac {5\,A\,b\,\mathrm {atanh}\left (\frac {\sqrt {b\,x^2+a}}{\sqrt {a}}\right )}{2\,a^{7/2}}-\frac {5\,A\,b^2\,x^2}{2\,a^3\,{\left (b\,x^2+a\right )}^{3/2}} \]
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