Integrand size = 18, antiderivative size = 98 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\frac {-5 A b+2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}}-\frac {5 A b-2 a B}{a^3 \sqrt {a+b x}}+\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{a^{7/2}} \]
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Time = 0.03 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {79, 53, 65, 214} \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{a^{7/2}}-\frac {5 A b-2 a B}{a^3 \sqrt {a+b x}}-\frac {5 A b-2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}} \]
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Rule 53
Rule 65
Rule 79
Rule 214
Rubi steps \begin{align*} \text {integral}& = -\frac {A}{a x (a+b x)^{3/2}}+\frac {\left (-\frac {5 A b}{2}+a B\right ) \int \frac {1}{x (a+b x)^{5/2}} \, dx}{a} \\ & = -\frac {5 A b-2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}}-\frac {(5 A b-2 a B) \int \frac {1}{x (a+b x)^{3/2}} \, dx}{2 a^2} \\ & = -\frac {5 A b-2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}}-\frac {5 A b-2 a B}{a^3 \sqrt {a+b x}}-\frac {(5 A b-2 a B) \int \frac {1}{x \sqrt {a+b x}} \, dx}{2 a^3} \\ & = -\frac {5 A b-2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}}-\frac {5 A b-2 a B}{a^3 \sqrt {a+b x}}-\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}\right )}{a^3 b} \\ & = -\frac {5 A b-2 a B}{3 a^2 (a+b x)^{3/2}}-\frac {A}{a x (a+b x)^{3/2}}-\frac {5 A b-2 a B}{a^3 \sqrt {a+b x}}+\frac {(5 A b-2 a B) \tanh ^{-1}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{a^{7/2}} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.88 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\frac {-15 A b^2 x^2+2 a b x (-10 A+3 B x)+a^2 (-3 A+8 B x)}{3 a^3 x (a+b x)^{3/2}}+\frac {(5 A b-2 a B) \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{a^{7/2}} \]
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Time = 0.55 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.84
method | result | size |
pseudoelliptic | \(-\frac {-5 x \left (b x +a \right )^{\frac {3}{2}} \left (A b -\frac {2 B a}{5}\right ) \operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )+\frac {20 x \left (-\frac {3 B x}{10}+A \right ) b \,a^{\frac {3}{2}}}{3}+\left (-\frac {8 B x}{3}+A \right ) a^{\frac {5}{2}}+5 A \sqrt {a}\, b^{2} x^{2}}{\left (b x +a \right )^{\frac {3}{2}} a^{\frac {7}{2}} x}\) | \(82\) |
risch | \(-\frac {A \sqrt {b x +a}}{a^{3} x}-\frac {-\frac {2 \left (-4 A b +2 B a \right )}{\sqrt {b x +a}}+\frac {4 a \left (A b -B a \right )}{3 \left (b x +a \right )^{\frac {3}{2}}}-\frac {2 \left (5 A b -2 B a \right ) \operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{\sqrt {a}}}{2 a^{3}}\) | \(86\) |
derivativedivides | \(-\frac {2 \left (2 A b -B a \right )}{a^{3} \sqrt {b x +a}}-\frac {2 \left (A b -B a \right )}{3 a^{2} \left (b x +a \right )^{\frac {3}{2}}}+\frac {-\frac {A \sqrt {b x +a}}{x}+\frac {\left (5 A b -2 B a \right ) \operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{\sqrt {a}}}{a^{3}}\) | \(88\) |
default | \(-\frac {2 \left (2 A b -B a \right )}{a^{3} \sqrt {b x +a}}-\frac {2 \left (A b -B a \right )}{3 a^{2} \left (b x +a \right )^{\frac {3}{2}}}+\frac {-\frac {A \sqrt {b x +a}}{x}+\frac {\left (5 A b -2 B a \right ) \operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{\sqrt {a}}}{a^{3}}\) | \(88\) |
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Time = 0.24 (sec) , antiderivative size = 330, normalized size of antiderivative = 3.37 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\left [-\frac {3 \, {\left ({\left (2 \, B a b^{2} - 5 \, A b^{3}\right )} x^{3} + 2 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{2} + {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x\right )} \sqrt {a} \log \left (\frac {b x + 2 \, \sqrt {b x + a} \sqrt {a} + 2 \, a}{x}\right ) + 2 \, {\left (3 \, A a^{3} - 3 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{2} - 4 \, {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x\right )} \sqrt {b x + a}}{6 \, {\left (a^{4} b^{2} x^{3} + 2 \, a^{5} b x^{2} + a^{6} x\right )}}, \frac {3 \, {\left ({\left (2 \, B a b^{2} - 5 \, A b^{3}\right )} x^{3} + 2 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{2} + {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {b x + a} \sqrt {-a}}{a}\right ) - {\left (3 \, A a^{3} - 3 \, {\left (2 \, B a^{2} b - 5 \, A a b^{2}\right )} x^{2} - 4 \, {\left (2 \, B a^{3} - 5 \, A a^{2} b\right )} x\right )} \sqrt {b x + a}}{3 \, {\left (a^{4} b^{2} x^{3} + 2 \, a^{5} b x^{2} + a^{6} x\right )}}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 1520 vs. \(2 (90) = 180\).
Time = 23.35 (sec) , antiderivative size = 1520, normalized size of antiderivative = 15.51 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\text {Too large to display} \]
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Time = 0.29 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.33 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=-\frac {1}{6} \, b {\left (\frac {2 \, {\left (2 \, B a^{3} - 2 \, A a^{2} b - 3 \, {\left (2 \, B a - 5 \, A b\right )} {\left (b x + a\right )}^{2} + 2 \, {\left (2 \, B a^{2} - 5 \, A a b\right )} {\left (b x + a\right )}\right )}}{{\left (b x + a\right )}^{\frac {5}{2}} a^{3} b - {\left (b x + a\right )}^{\frac {3}{2}} a^{4} b} - \frac {3 \, {\left (2 \, B a - 5 \, A b\right )} \log \left (\frac {\sqrt {b x + a} - \sqrt {a}}{\sqrt {b x + a} + \sqrt {a}}\right )}{a^{\frac {7}{2}} b}\right )} \]
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Time = 0.30 (sec) , antiderivative size = 90, normalized size of antiderivative = 0.92 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\frac {{\left (2 \, B a - 5 \, A b\right )} \arctan \left (\frac {\sqrt {b x + a}}{\sqrt {-a}}\right )}{\sqrt {-a} a^{3}} - \frac {\sqrt {b x + a} A}{a^{3} x} + \frac {2 \, {\left (3 \, {\left (b x + a\right )} B a + B a^{2} - 6 \, {\left (b x + a\right )} A b - A a b\right )}}{3 \, {\left (b x + a\right )}^{\frac {3}{2}} a^{3}} \]
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Time = 0.48 (sec) , antiderivative size = 103, normalized size of antiderivative = 1.05 \[ \int \frac {A+B x}{x^2 (a+b x)^{5/2}} \, dx=\frac {\mathrm {atanh}\left (\frac {\sqrt {a+b\,x}}{\sqrt {a}}\right )\,\left (5\,A\,b-2\,B\,a\right )}{a^{7/2}}-\frac {\frac {2\,\left (A\,b-B\,a\right )}{3\,a}+\frac {2\,\left (5\,A\,b-2\,B\,a\right )\,\left (a+b\,x\right )}{3\,a^2}-\frac {\left (5\,A\,b-2\,B\,a\right )\,{\left (a+b\,x\right )}^2}{a^3}}{a\,{\left (a+b\,x\right )}^{3/2}-{\left (a+b\,x\right )}^{5/2}} \]
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