Integrand size = 21, antiderivative size = 203 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=-\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {4 c^{15/4} x \left (\sqrt {b}+\sqrt {c} x\right ) \sqrt {\frac {b+c x^2}{\left (\sqrt {b}+\sqrt {c} x\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{c} \sqrt {x}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{231 b^{9/4} \sqrt {b x^2+c x^4}} \]
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Time = 0.18 (sec) , antiderivative size = 203, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.238, Rules used = {2045, 2050, 2057, 335, 226} \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\frac {4 c^{15/4} x \left (\sqrt {b}+\sqrt {c} x\right ) \sqrt {\frac {b+c x^2}{\left (\sqrt {b}+\sqrt {c} x\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{c} \sqrt {x}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{231 b^{9/4} \sqrt {b x^2+c x^4}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}-\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}} \]
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Rule 226
Rule 335
Rule 2045
Rule 2050
Rule 2057
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {1}{5} (2 c) \int \frac {\sqrt {b x^2+c x^4}}{x^{15/2}} \, dx \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {1}{55} \left (4 c^2\right ) \int \frac {1}{x^{7/2} \sqrt {b x^2+c x^4}} \, dx \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}-\frac {\left (4 c^3\right ) \int \frac {1}{x^{3/2} \sqrt {b x^2+c x^4}} \, dx}{77 b} \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {\left (4 c^4\right ) \int \frac {\sqrt {x}}{\sqrt {b x^2+c x^4}} \, dx}{231 b^2} \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {\left (4 c^4 x \sqrt {b+c x^2}\right ) \int \frac {1}{\sqrt {x} \sqrt {b+c x^2}} \, dx}{231 b^2 \sqrt {b x^2+c x^4}} \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {\left (8 c^4 x \sqrt {b+c x^2}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {b+c x^4}} \, dx,x,\sqrt {x}\right )}{231 b^2 \sqrt {b x^2+c x^4}} \\ & = -\frac {4 c \sqrt {b x^2+c x^4}}{55 x^{13/2}}-\frac {8 c^2 \sqrt {b x^2+c x^4}}{385 b x^{9/2}}+\frac {8 c^3 \sqrt {b x^2+c x^4}}{231 b^2 x^{5/2}}-\frac {2 \left (b x^2+c x^4\right )^{3/2}}{15 x^{21/2}}+\frac {4 c^{15/4} x \left (\sqrt {b}+\sqrt {c} x\right ) \sqrt {\frac {b+c x^2}{\left (\sqrt {b}+\sqrt {c} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{c} \sqrt {x}}{\sqrt [4]{b}}\right )|\frac {1}{2}\right )}{231 b^{9/4} \sqrt {b x^2+c x^4}} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 10.02 (sec) , antiderivative size = 58, normalized size of antiderivative = 0.29 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=-\frac {2 b \sqrt {x^2 \left (b+c x^2\right )} \operatorname {Hypergeometric2F1}\left (-\frac {15}{4},-\frac {3}{2},-\frac {11}{4},-\frac {c x^2}{b}\right )}{15 x^{17/2} \sqrt {1+\frac {c x^2}{b}}} \]
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Time = 1.30 (sec) , antiderivative size = 167, normalized size of antiderivative = 0.82
method | result | size |
default | \(\frac {2 \left (c \,x^{4}+b \,x^{2}\right )^{\frac {3}{2}} \left (10 \sqrt {-b c}\, \sqrt {\frac {c x +\sqrt {-b c}}{\sqrt {-b c}}}\, \sqrt {2}\, \sqrt {\frac {-c x +\sqrt {-b c}}{\sqrt {-b c}}}\, \sqrt {-\frac {x c}{\sqrt {-b c}}}\, F\left (\sqrt {\frac {c x +\sqrt {-b c}}{\sqrt {-b c}}}, \frac {\sqrt {2}}{2}\right ) c^{3} x^{7}+20 c^{4} x^{8}+8 c^{3} x^{6} b -131 b^{2} c^{2} x^{4}-196 x^{2} c \,b^{3}-77 b^{4}\right )}{1155 x^{\frac {21}{2}} \left (c \,x^{2}+b \right )^{2} b^{2}}\) | \(167\) |
risch | \(-\frac {2 \left (-20 c^{3} x^{6}+12 b \,c^{2} x^{4}+119 b^{2} c \,x^{2}+77 b^{3}\right ) \sqrt {x^{2} \left (c \,x^{2}+b \right )}}{1155 x^{\frac {17}{2}} b^{2}}+\frac {4 c^{3} \sqrt {-b c}\, \sqrt {\frac {\left (x +\frac {\sqrt {-b c}}{c}\right ) c}{\sqrt {-b c}}}\, \sqrt {-\frac {2 \left (x -\frac {\sqrt {-b c}}{c}\right ) c}{\sqrt {-b c}}}\, \sqrt {-\frac {x c}{\sqrt {-b c}}}\, F\left (\sqrt {\frac {\left (x +\frac {\sqrt {-b c}}{c}\right ) c}{\sqrt {-b c}}}, \frac {\sqrt {2}}{2}\right ) \sqrt {x^{2} \left (c \,x^{2}+b \right )}\, \sqrt {x \left (c \,x^{2}+b \right )}}{231 b^{2} \sqrt {c \,x^{3}+b x}\, x^{\frac {3}{2}} \left (c \,x^{2}+b \right )}\) | \(202\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.07 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.37 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\frac {2 \, {\left (20 \, c^{\frac {7}{2}} x^{9} {\rm weierstrassPInverse}\left (-\frac {4 \, b}{c}, 0, x\right ) + {\left (20 \, c^{3} x^{6} - 12 \, b c^{2} x^{4} - 119 \, b^{2} c x^{2} - 77 \, b^{3}\right )} \sqrt {c x^{4} + b x^{2}} \sqrt {x}\right )}}{1155 \, b^{2} x^{9}} \]
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Timed out. \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\text {Timed out} \]
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\[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\int { \frac {{\left (c x^{4} + b x^{2}\right )}^{\frac {3}{2}}}{x^{\frac {23}{2}}} \,d x } \]
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\[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\int { \frac {{\left (c x^{4} + b x^{2}\right )}^{\frac {3}{2}}}{x^{\frac {23}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^{23/2}} \, dx=\int \frac {{\left (c\,x^4+b\,x^2\right )}^{3/2}}{x^{23/2}} \,d x \]
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