Integrand size = 22, antiderivative size = 289 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=-\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}+\frac {(7 A b-3 a B) \arctan \left (1-\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \arctan \left (1+\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}+\frac {(7 A b-3 a B) \log \left (\sqrt {a}-\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \log \left (\sqrt {a}+\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}} \]
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Time = 0.16 (sec) , antiderivative size = 289, normalized size of antiderivative = 1.00, number of steps used = 12, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.409, Rules used = {468, 331, 335, 217, 1179, 642, 1176, 631, 210} \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=\frac {(7 A b-3 a B) \arctan \left (1-\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \arctan \left (\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}+1\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}+\frac {(7 A b-3 a B) \log \left (-\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {a}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \log \left (\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {a}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )} \]
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Rule 210
Rule 217
Rule 331
Rule 335
Rule 468
Rule 631
Rule 642
Rule 1176
Rule 1179
Rubi steps \begin{align*} \text {integral}& = \frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}+\frac {\left (\frac {7 A b}{2}-\frac {3 a B}{2}\right ) \int \frac {1}{x^{5/2} \left (a+b x^2\right )} \, dx}{2 a b} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}-\frac {(7 A b-3 a B) \int \frac {1}{\sqrt {x} \left (a+b x^2\right )} \, dx}{4 a^2} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {1}{a+b x^4} \, dx,x,\sqrt {x}\right )}{2 a^2} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {\sqrt {a}-\sqrt {b} x^2}{a+b x^4} \, dx,x,\sqrt {x}\right )}{4 a^{5/2}}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {\sqrt {a}+\sqrt {b} x^2}{a+b x^4} \, dx,x,\sqrt {x}\right )}{4 a^{5/2}} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {1}{\frac {\sqrt {a}}{\sqrt {b}}-\frac {\sqrt {2} \sqrt [4]{a} x}{\sqrt [4]{b}}+x^2} \, dx,x,\sqrt {x}\right )}{8 a^{5/2} \sqrt {b}}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {1}{\frac {\sqrt {a}}{\sqrt {b}}+\frac {\sqrt {2} \sqrt [4]{a} x}{\sqrt [4]{b}}+x^2} \, dx,x,\sqrt {x}\right )}{8 a^{5/2} \sqrt {b}}+\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {\frac {\sqrt {2} \sqrt [4]{a}}{\sqrt [4]{b}}+2 x}{-\frac {\sqrt {a}}{\sqrt {b}}-\frac {\sqrt {2} \sqrt [4]{a} x}{\sqrt [4]{b}}-x^2} \, dx,x,\sqrt {x}\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}+\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {\frac {\sqrt {2} \sqrt [4]{a}}{\sqrt [4]{b}}-2 x}{-\frac {\sqrt {a}}{\sqrt {b}}+\frac {\sqrt {2} \sqrt [4]{a} x}{\sqrt [4]{b}}-x^2} \, dx,x,\sqrt {x}\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}+\frac {(7 A b-3 a B) \log \left (\sqrt {a}-\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \log \left (\sqrt {a}+\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}+\frac {(7 A b-3 a B) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}} \\ & = -\frac {7 A b-3 a B}{6 a^2 b x^{3/2}}+\frac {A b-a B}{2 a b x^{3/2} \left (a+b x^2\right )}+\frac {(7 A b-3 a B) \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [4]{b} \sqrt {x}}{\sqrt [4]{a}}\right )}{4 \sqrt {2} a^{11/4} \sqrt [4]{b}}+\frac {(7 A b-3 a B) \log \left (\sqrt {a}-\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}}-\frac {(7 A b-3 a B) \log \left (\sqrt {a}+\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}+\sqrt {b} x\right )}{8 \sqrt {2} a^{11/4} \sqrt [4]{b}} \\ \end{align*}
Time = 0.48 (sec) , antiderivative size = 165, normalized size of antiderivative = 0.57 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=\frac {\frac {4 a^{3/4} \left (-4 a A-7 A b x^2+3 a B x^2\right )}{x^{3/2} \left (a+b x^2\right )}+\frac {3 \sqrt {2} (7 A b-3 a B) \arctan \left (\frac {\sqrt {a}-\sqrt {b} x}{\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}}\right )}{\sqrt [4]{b}}+\frac {3 \sqrt {2} (-7 A b+3 a B) \text {arctanh}\left (\frac {\sqrt {2} \sqrt [4]{a} \sqrt [4]{b} \sqrt {x}}{\sqrt {a}+\sqrt {b} x}\right )}{\sqrt [4]{b}}}{24 a^{11/4}} \]
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Time = 2.78 (sec) , antiderivative size = 153, normalized size of antiderivative = 0.53
method | result | size |
derivativedivides | \(-\frac {2 \left (\frac {\left (\frac {A b}{4}-\frac {B a}{4}\right ) \sqrt {x}}{b \,x^{2}+a}+\frac {\left (7 A b -3 B a \right ) \left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {2}\, \left (\ln \left (\frac {x +\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}{x -\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}+1\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}-1\right )\right )}{32 a}\right )}{a^{2}}-\frac {2 A}{3 a^{2} x^{\frac {3}{2}}}\) | \(153\) |
default | \(-\frac {2 \left (\frac {\left (\frac {A b}{4}-\frac {B a}{4}\right ) \sqrt {x}}{b \,x^{2}+a}+\frac {\left (7 A b -3 B a \right ) \left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {2}\, \left (\ln \left (\frac {x +\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}{x -\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}+1\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}-1\right )\right )}{32 a}\right )}{a^{2}}-\frac {2 A}{3 a^{2} x^{\frac {3}{2}}}\) | \(153\) |
risch | \(-\frac {2 A}{3 a^{2} x^{\frac {3}{2}}}-\frac {\frac {2 \left (\frac {A b}{4}-\frac {B a}{4}\right ) \sqrt {x}}{b \,x^{2}+a}+\frac {\left (7 A b -3 B a \right ) \left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {2}\, \left (\ln \left (\frac {x +\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}{x -\left (\frac {a}{b}\right )^{\frac {1}{4}} \sqrt {x}\, \sqrt {2}+\sqrt {\frac {a}{b}}}\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}+1\right )+2 \arctan \left (\frac {\sqrt {2}\, \sqrt {x}}{\left (\frac {a}{b}\right )^{\frac {1}{4}}}-1\right )\right )}{16 a}}{a^{2}}\) | \(154\) |
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Result contains complex when optimal does not.
Time = 0.27 (sec) , antiderivative size = 691, normalized size of antiderivative = 2.39 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=-\frac {3 \, {\left (a^{2} b x^{4} + a^{3} x^{2}\right )} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} \log \left (a^{3} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} - {\left (3 \, B a - 7 \, A b\right )} \sqrt {x}\right ) + 3 \, {\left (i \, a^{2} b x^{4} + i \, a^{3} x^{2}\right )} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} \log \left (i \, a^{3} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} - {\left (3 \, B a - 7 \, A b\right )} \sqrt {x}\right ) + 3 \, {\left (-i \, a^{2} b x^{4} - i \, a^{3} x^{2}\right )} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} \log \left (-i \, a^{3} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} - {\left (3 \, B a - 7 \, A b\right )} \sqrt {x}\right ) - 3 \, {\left (a^{2} b x^{4} + a^{3} x^{2}\right )} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} \log \left (-a^{3} \left (-\frac {81 \, B^{4} a^{4} - 756 \, A B^{3} a^{3} b + 2646 \, A^{2} B^{2} a^{2} b^{2} - 4116 \, A^{3} B a b^{3} + 2401 \, A^{4} b^{4}}{a^{11} b}\right )^{\frac {1}{4}} - {\left (3 \, B a - 7 \, A b\right )} \sqrt {x}\right ) - 4 \, {\left ({\left (3 \, B a - 7 \, A b\right )} x^{2} - 4 \, A a\right )} \sqrt {x}}{24 \, {\left (a^{2} b x^{4} + a^{3} x^{2}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 855 vs. \(2 (277) = 554\).
Time = 112.13 (sec) , antiderivative size = 855, normalized size of antiderivative = 2.96 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=\begin {cases} \tilde {\infty } \left (- \frac {2 A}{11 x^{\frac {11}{2}}} - \frac {2 B}{7 x^{\frac {7}{2}}}\right ) & \text {for}\: a = 0 \wedge b = 0 \\\frac {- \frac {2 A}{3 x^{\frac {3}{2}}} + 2 B \sqrt {x}}{a^{2}} & \text {for}\: b = 0 \\\frac {- \frac {2 A}{11 x^{\frac {11}{2}}} - \frac {2 B}{7 x^{\frac {7}{2}}}}{b^{2}} & \text {for}\: a = 0 \\- \frac {16 A a^{2}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {21 A a b x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} - \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {21 A a b x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} + \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {42 A a b x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \operatorname {atan}{\left (\frac {\sqrt {x}}{\sqrt [4]{- \frac {a}{b}}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {28 A a b x^{2}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {21 A b^{2} x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} - \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {21 A b^{2} x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} + \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {42 A b^{2} x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \operatorname {atan}{\left (\frac {\sqrt {x}}{\sqrt [4]{- \frac {a}{b}}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {9 B a^{2} x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} - \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {9 B a^{2} x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} + \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {18 B a^{2} x^{\frac {3}{2}} \sqrt [4]{- \frac {a}{b}} \operatorname {atan}{\left (\frac {\sqrt {x}}{\sqrt [4]{- \frac {a}{b}}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {12 B a^{2} x^{2}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} - \frac {9 B a b x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} - \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {9 B a b x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \log {\left (\sqrt {x} + \sqrt [4]{- \frac {a}{b}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} + \frac {18 B a b x^{\frac {7}{2}} \sqrt [4]{- \frac {a}{b}} \operatorname {atan}{\left (\frac {\sqrt {x}}{\sqrt [4]{- \frac {a}{b}}} \right )}}{24 a^{4} x^{\frac {3}{2}} + 24 a^{3} b x^{\frac {7}{2}}} & \text {otherwise} \end {cases} \]
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Time = 0.30 (sec) , antiderivative size = 251, normalized size of antiderivative = 0.87 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=\frac {{\left (3 \, B a - 7 \, A b\right )} x^{2} - 4 \, A a}{6 \, {\left (a^{2} b x^{\frac {7}{2}} + a^{3} x^{\frac {3}{2}}\right )}} + \frac {\frac {2 \, \sqrt {2} {\left (3 \, B a - 7 \, A b\right )} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} a^{\frac {1}{4}} b^{\frac {1}{4}} + 2 \, \sqrt {b} \sqrt {x}\right )}}{2 \, \sqrt {\sqrt {a} \sqrt {b}}}\right )}{\sqrt {a} \sqrt {\sqrt {a} \sqrt {b}}} + \frac {2 \, \sqrt {2} {\left (3 \, B a - 7 \, A b\right )} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} a^{\frac {1}{4}} b^{\frac {1}{4}} - 2 \, \sqrt {b} \sqrt {x}\right )}}{2 \, \sqrt {\sqrt {a} \sqrt {b}}}\right )}{\sqrt {a} \sqrt {\sqrt {a} \sqrt {b}}} + \frac {\sqrt {2} {\left (3 \, B a - 7 \, A b\right )} \log \left (\sqrt {2} a^{\frac {1}{4}} b^{\frac {1}{4}} \sqrt {x} + \sqrt {b} x + \sqrt {a}\right )}{a^{\frac {3}{4}} b^{\frac {1}{4}}} - \frac {\sqrt {2} {\left (3 \, B a - 7 \, A b\right )} \log \left (-\sqrt {2} a^{\frac {1}{4}} b^{\frac {1}{4}} \sqrt {x} + \sqrt {b} x + \sqrt {a}\right )}{a^{\frac {3}{4}} b^{\frac {1}{4}}}}{16 \, a^{2}} \]
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Time = 0.30 (sec) , antiderivative size = 283, normalized size of antiderivative = 0.98 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=\frac {\sqrt {2} {\left (3 \, \left (a b^{3}\right )^{\frac {1}{4}} B a - 7 \, \left (a b^{3}\right )^{\frac {1}{4}} A b\right )} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} \left (\frac {a}{b}\right )^{\frac {1}{4}} + 2 \, \sqrt {x}\right )}}{2 \, \left (\frac {a}{b}\right )^{\frac {1}{4}}}\right )}{8 \, a^{3} b} + \frac {\sqrt {2} {\left (3 \, \left (a b^{3}\right )^{\frac {1}{4}} B a - 7 \, \left (a b^{3}\right )^{\frac {1}{4}} A b\right )} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} \left (\frac {a}{b}\right )^{\frac {1}{4}} - 2 \, \sqrt {x}\right )}}{2 \, \left (\frac {a}{b}\right )^{\frac {1}{4}}}\right )}{8 \, a^{3} b} + \frac {\sqrt {2} {\left (3 \, \left (a b^{3}\right )^{\frac {1}{4}} B a - 7 \, \left (a b^{3}\right )^{\frac {1}{4}} A b\right )} \log \left (\sqrt {2} \sqrt {x} \left (\frac {a}{b}\right )^{\frac {1}{4}} + x + \sqrt {\frac {a}{b}}\right )}{16 \, a^{3} b} - \frac {\sqrt {2} {\left (3 \, \left (a b^{3}\right )^{\frac {1}{4}} B a - 7 \, \left (a b^{3}\right )^{\frac {1}{4}} A b\right )} \log \left (-\sqrt {2} \sqrt {x} \left (\frac {a}{b}\right )^{\frac {1}{4}} + x + \sqrt {\frac {a}{b}}\right )}{16 \, a^{3} b} + \frac {B a \sqrt {x} - A b \sqrt {x}}{2 \, {\left (b x^{2} + a\right )} a^{2}} - \frac {2 \, A}{3 \, a^{2} x^{\frac {3}{2}}} \]
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Time = 5.15 (sec) , antiderivative size = 859, normalized size of antiderivative = 2.97 \[ \int \frac {A+B x^2}{x^{5/2} \left (a+b x^2\right )^2} \, dx=-\frac {\frac {2\,A}{3\,a}+\frac {x^2\,\left (7\,A\,b-3\,B\,a\right )}{6\,a^2}}{a\,x^{3/2}+b\,x^{7/2}}-\frac {\mathrm {atan}\left (\frac {\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}}{\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}}\right )\,\left (7\,A\,b-3\,B\,a\right )\,1{}\mathrm {i}}{4\,{\left (-a\right )}^{11/4}\,b^{1/4}}-\frac {\mathrm {atan}\left (\frac {\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}}{\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}-\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (\sqrt {x}\,\left (1568\,A^2\,a^6\,b^5-1344\,A\,B\,a^7\,b^4+288\,B^2\,a^8\,b^3\right )+\frac {\left (7\,A\,b-3\,B\,a\right )\,\left (1792\,A\,a^9\,b^4-768\,B\,a^{10}\,b^3\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}\right )\,1{}\mathrm {i}}{8\,{\left (-a\right )}^{11/4}\,b^{1/4}}}\right )\,\left (7\,A\,b-3\,B\,a\right )}{4\,{\left (-a\right )}^{11/4}\,b^{1/4}} \]
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