Integrand size = 24, antiderivative size = 391 \[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\frac {x^{3/2} \left (b^2-2 a c+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {b \sqrt {c} x^{3/2} \left (a+b x^2+c x^4\right )}{a \left (b^2-4 a c\right ) \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {a x+b x^3+c x^5}}+\frac {b \sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} E\left (2 \arctan \left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right )|\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{a^{3/4} \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right ),\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{2 a^{3/4} \left (b-2 \sqrt {a} \sqrt {c}\right ) \sqrt {a x+b x^3+c x^5}} \]
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Time = 0.16 (sec) , antiderivative size = 391, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.208, Rules used = {1938, 1967, 1211, 1117, 1209} \[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\frac {b \sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} E\left (2 \arctan \left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right )|\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{a^{3/4} \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right ),\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{2 a^{3/4} \left (b-2 \sqrt {a} \sqrt {c}\right ) \sqrt {a x+b x^3+c x^5}}+\frac {x^{3/2} \left (-2 a c+b^2+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {b \sqrt {c} x^{3/2} \left (a+b x^2+c x^4\right )}{a \left (b^2-4 a c\right ) \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {a x+b x^3+c x^5}} \]
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Rule 1117
Rule 1209
Rule 1211
Rule 1938
Rule 1967
Rubi steps \begin{align*} \text {integral}& = \frac {x^{3/2} \left (b^2-2 a c+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\int \frac {\sqrt {x} \left (2 a c+b c x^2\right )}{\sqrt {a x+b x^3+c x^5}} \, dx}{a \left (b^2-4 a c\right )} \\ & = \frac {x^{3/2} \left (b^2-2 a c+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\left (\sqrt {x} \sqrt {a+b x^2+c x^4}\right ) \int \frac {2 a c+b c x^2}{\sqrt {a+b x^2+c x^4}} \, dx}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}} \\ & = \frac {x^{3/2} \left (b^2-2 a c+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}+\frac {\left (b \sqrt {c} \sqrt {x} \sqrt {a+b x^2+c x^4}\right ) \int \frac {1-\frac {\sqrt {c} x^2}{\sqrt {a}}}{\sqrt {a+b x^2+c x^4}} \, dx}{\sqrt {a} \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\left (\left (b+2 \sqrt {a} \sqrt {c}\right ) \sqrt {c} \sqrt {x} \sqrt {a+b x^2+c x^4}\right ) \int \frac {1}{\sqrt {a+b x^2+c x^4}} \, dx}{\sqrt {a} \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}} \\ & = \frac {x^{3/2} \left (b^2-2 a c+b c x^2\right )}{a \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {b \sqrt {c} x^{3/2} \left (a+b x^2+c x^4\right )}{a \left (b^2-4 a c\right ) \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {a x+b x^3+c x^5}}+\frac {b \sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} E\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right )|\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{a^{3/4} \left (b^2-4 a c\right ) \sqrt {a x+b x^3+c x^5}}-\frac {\sqrt [4]{c} \sqrt {x} \left (\sqrt {a}+\sqrt {c} x^2\right ) \sqrt {\frac {a+b x^2+c x^4}{\left (\sqrt {a}+\sqrt {c} x^2\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{c} x}{\sqrt [4]{a}}\right )|\frac {1}{4} \left (2-\frac {b}{\sqrt {a} \sqrt {c}}\right )\right )}{2 a^{3/4} \left (b-2 \sqrt {a} \sqrt {c}\right ) \sqrt {a x+b x^3+c x^5}} \\ \end{align*}
Result contains complex when optimal does not.
Time = 11.66 (sec) , antiderivative size = 463, normalized size of antiderivative = 1.18 \[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=-\frac {\sqrt {x} \left (-4 \sqrt {\frac {c}{b+\sqrt {b^2-4 a c}}} x \left (b^2-2 a c+b c x^2\right )+i b \left (-b+\sqrt {b^2-4 a c}\right ) \sqrt {\frac {b+\sqrt {b^2-4 a c}+2 c x^2}{b+\sqrt {b^2-4 a c}}} \sqrt {\frac {2 b-2 \sqrt {b^2-4 a c}+4 c x^2}{b-\sqrt {b^2-4 a c}}} E\left (i \text {arcsinh}\left (\sqrt {2} \sqrt {\frac {c}{b+\sqrt {b^2-4 a c}}} x\right )|\frac {b+\sqrt {b^2-4 a c}}{b-\sqrt {b^2-4 a c}}\right )-i \left (-b^2+4 a c+b \sqrt {b^2-4 a c}\right ) \sqrt {\frac {b+\sqrt {b^2-4 a c}+2 c x^2}{b+\sqrt {b^2-4 a c}}} \sqrt {\frac {2 b-2 \sqrt {b^2-4 a c}+4 c x^2}{b-\sqrt {b^2-4 a c}}} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt {2} \sqrt {\frac {c}{b+\sqrt {b^2-4 a c}}} x\right ),\frac {b+\sqrt {b^2-4 a c}}{b-\sqrt {b^2-4 a c}}\right )\right )}{4 a \left (b^2-4 a c\right ) \sqrt {\frac {c}{b+\sqrt {b^2-4 a c}}} \sqrt {x \left (a+b x^2+c x^4\right )}} \]
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Time = 0.52 (sec) , antiderivative size = 533, normalized size of antiderivative = 1.36
method | result | size |
default | \(\frac {\sqrt {x \left (c \,x^{4}+b \,x^{2}+a \right )}\, \left (-\sqrt {-4 a c +b^{2}}\, \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, b c \,x^{3}-\sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, b^{2} c \,x^{3}+c \sqrt {-\frac {2 \left (\sqrt {-4 a c +b^{2}}\, x^{2}-b \,x^{2}-2 a \right )}{a}}\, \sqrt {\frac {\sqrt {-4 a c +b^{2}}\, x^{2}+b \,x^{2}+2 a}{a}}\, F\left (\frac {x \sqrt {2}\, \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}}{2}, \frac {\sqrt {2}\, \sqrt {\frac {b \sqrt {-4 a c +b^{2}}-2 a c +b^{2}}{a c}}}{2}\right ) a \sqrt {-4 a c +b^{2}}+b c \sqrt {-\frac {2 \left (\sqrt {-4 a c +b^{2}}\, x^{2}-b \,x^{2}-2 a \right )}{a}}\, \sqrt {\frac {\sqrt {-4 a c +b^{2}}\, x^{2}+b \,x^{2}+2 a}{a}}\, a E\left (\frac {x \sqrt {2}\, \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}}{2}, \frac {\sqrt {2}\, \sqrt {\frac {b \sqrt {-4 a c +b^{2}}-2 a c +b^{2}}{a c}}}{2}\right )+2 \sqrt {-4 a c +b^{2}}\, \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, a c x -\sqrt {-4 a c +b^{2}}\, \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, b^{2} x +2 \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, a b c x -\sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, b^{3} x \right )}{\sqrt {x}\, \left (c \,x^{4}+b \,x^{2}+a \right ) a \left (4 a c -b^{2}\right ) \sqrt {\frac {-b +\sqrt {-4 a c +b^{2}}}{a}}\, \left (b +\sqrt {-4 a c +b^{2}}\right )}\) | \(533\) |
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none
Time = 0.10 (sec) , antiderivative size = 479, normalized size of antiderivative = 1.23 \[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\frac {\sqrt {\frac {1}{2}} {\left (b^{2} c x^{6} + b^{3} x^{4} + a b^{2} x^{2} - {\left (b c^{2} x^{6} + b^{2} c x^{4} + a b c x^{2}\right )} \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}}\right )} \sqrt {c} \sqrt {\frac {c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} - b}{c}} E(\arcsin \left (\frac {\sqrt {\frac {1}{2}} \sqrt {\frac {c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} - b}{c}}}{x}\right )\,|\,\frac {b c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} + b^{2} - 2 \, a c}{2 \, a c}) - \sqrt {\frac {1}{2}} {\left ({\left (b^{2} c + 2 \, b c^{2}\right )} x^{6} + {\left (b^{3} + 2 \, b^{2} c\right )} x^{4} + {\left (a b^{2} + 2 \, a b c\right )} x^{2} - {\left ({\left (b c^{2} - 2 \, c^{3}\right )} x^{6} + {\left (b^{2} c - 2 \, b c^{2}\right )} x^{4} + {\left (a b c - 2 \, a c^{2}\right )} x^{2}\right )} \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}}\right )} \sqrt {c} \sqrt {\frac {c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} - b}{c}} F(\arcsin \left (\frac {\sqrt {\frac {1}{2}} \sqrt {\frac {c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} - b}{c}}}{x}\right )\,|\,\frac {b c \sqrt {\frac {b^{2} - 4 \, a c}{c^{2}}} + b^{2} - 2 \, a c}{2 \, a c}) - 2 \, \sqrt {c x^{5} + b x^{3} + a x} {\left (2 \, a c^{2} x^{2} + a b c\right )} \sqrt {x}}{2 \, {\left ({\left (a b^{2} c^{2} - 4 \, a^{2} c^{3}\right )} x^{6} + {\left (a b^{3} c - 4 \, a^{2} b c^{2}\right )} x^{4} + {\left (a^{2} b^{2} c - 4 \, a^{3} c^{2}\right )} x^{2}\right )}} \]
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\[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\int \frac {x^{\frac {3}{2}}}{\left (x \left (a + b x^{2} + c x^{4}\right )\right )^{\frac {3}{2}}}\, dx \]
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\[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\int { \frac {x^{\frac {3}{2}}}{{\left (c x^{5} + b x^{3} + a x\right )}^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\int { \frac {x^{\frac {3}{2}}}{{\left (c x^{5} + b x^{3} + a x\right )}^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {x^{3/2}}{\left (a x+b x^3+c x^5\right )^{3/2}} \, dx=\int \frac {x^{3/2}}{{\left (c\,x^5+b\,x^3+a\,x\right )}^{3/2}} \,d x \]
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