Integrand size = 26, antiderivative size = 330 \[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\frac {\left (7 a b-\frac {2 b^2 c}{d}+\frac {3 a^2 d}{c}\right ) x \sqrt {a+b x^2}}{3 \sqrt {c+d x^2}}+\frac {b (b c+3 a d) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{3 c d}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}+\frac {\left (2 b^2 c^2-7 a b c d-3 a^2 d^2\right ) \sqrt {a+b x^2} E\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{3 \sqrt {c} d^{3/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}-\frac {b \sqrt {c} (b c-9 a d) \sqrt {a+b x^2} \operatorname {EllipticF}\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),1-\frac {b c}{a d}\right )}{3 d^{3/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}} \]
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Time = 0.20 (sec) , antiderivative size = 330, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {485, 542, 545, 429, 506, 422} \[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\frac {\sqrt {a+b x^2} \left (-3 a^2 d^2-7 a b c d+2 b^2 c^2\right ) E\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{3 \sqrt {c} d^{3/2} \sqrt {c+d x^2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}}}+\frac {x \sqrt {a+b x^2} \left (\frac {3 a^2 d}{c}+7 a b-\frac {2 b^2 c}{d}\right )}{3 \sqrt {c+d x^2}}-\frac {b \sqrt {c} \sqrt {a+b x^2} (b c-9 a d) \operatorname {EllipticF}\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),1-\frac {b c}{a d}\right )}{3 d^{3/2} \sqrt {c+d x^2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}}}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}+\frac {b x \sqrt {a+b x^2} \sqrt {c+d x^2} (3 a d+b c)}{3 c d} \]
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Rule 422
Rule 429
Rule 485
Rule 506
Rule 542
Rule 545
Rubi steps \begin{align*} \text {integral}& = -\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}+\frac {\int \frac {\sqrt {a+b x^2} \left (4 a b c+b (b c+3 a d) x^2\right )}{\sqrt {c+d x^2}} \, dx}{c} \\ & = \frac {b (b c+3 a d) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{3 c d}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}+\frac {\int \frac {-a b c (b c-9 a d)-b \left (2 b^2 c^2-7 a b c d-3 a^2 d^2\right ) x^2}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{3 c d} \\ & = \frac {b (b c+3 a d) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{3 c d}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}-\frac {(a b (b c-9 a d)) \int \frac {1}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{3 d}-\frac {\left (b \left (2 b^2 c^2-7 a b c d-3 a^2 d^2\right )\right ) \int \frac {x^2}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{3 c d} \\ & = \frac {\left (7 a b-\frac {2 b^2 c}{d}+\frac {3 a^2 d}{c}\right ) x \sqrt {a+b x^2}}{3 \sqrt {c+d x^2}}+\frac {b (b c+3 a d) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{3 c d}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}-\frac {b \sqrt {c} (b c-9 a d) \sqrt {a+b x^2} F\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{3 d^{3/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}+\frac {\left (2 b^2 c^2-7 a b c d-3 a^2 d^2\right ) \int \frac {\sqrt {a+b x^2}}{\left (c+d x^2\right )^{3/2}} \, dx}{3 d} \\ & = \frac {\left (7 a b-\frac {2 b^2 c}{d}+\frac {3 a^2 d}{c}\right ) x \sqrt {a+b x^2}}{3 \sqrt {c+d x^2}}+\frac {b (b c+3 a d) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{3 c d}-\frac {a \left (a+b x^2\right )^{3/2} \sqrt {c+d x^2}}{c x}+\frac {\left (2 b^2 c^2-7 a b c d-3 a^2 d^2\right ) \sqrt {a+b x^2} E\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{3 \sqrt {c} d^{3/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}-\frac {b \sqrt {c} (b c-9 a d) \sqrt {a+b x^2} F\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{3 d^{3/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}} \\ \end{align*}
Result contains complex when optimal does not.
Time = 2.84 (sec) , antiderivative size = 254, normalized size of antiderivative = 0.77 \[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\frac {-\sqrt {\frac {b}{a}} d \left (a+b x^2\right ) \left (3 a^2 d-b^2 c x^2\right ) \left (c+d x^2\right )-i b c \left (-2 b^2 c^2+7 a b c d+3 a^2 d^2\right ) x \sqrt {1+\frac {b x^2}{a}} \sqrt {1+\frac {d x^2}{c}} E\left (i \text {arcsinh}\left (\sqrt {\frac {b}{a}} x\right )|\frac {a d}{b c}\right )-2 i b c \left (b^2 c^2-4 a b c d+3 a^2 d^2\right ) x \sqrt {1+\frac {b x^2}{a}} \sqrt {1+\frac {d x^2}{c}} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt {\frac {b}{a}} x\right ),\frac {a d}{b c}\right )}{3 \sqrt {\frac {b}{a}} c d^2 x \sqrt {a+b x^2} \sqrt {c+d x^2}} \]
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Time = 5.08 (sec) , antiderivative size = 365, normalized size of antiderivative = 1.11
method | result | size |
elliptic | \(\frac {\sqrt {\left (b \,x^{2}+a \right ) \left (d \,x^{2}+c \right )}\, \left (-\frac {a^{2} \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}{c x}+\frac {b^{2} x \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}{3 d}+\frac {\left (3 a^{2} b -\frac {a \,b^{2} c}{3 d}\right ) \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {\left (3 a \,b^{2}+\frac {b d \,a^{2}}{c}-\frac {b^{2} \left (2 a d +2 b c \right )}{3 d}\right ) c \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, \left (F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )-E\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}\, d}\right )}{\sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}}\) | \(365\) |
risch | \(-\frac {\sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}\, \left (-b^{2} c \,x^{2}+3 a^{2} d \right )}{3 d c x}+\frac {b \left (\frac {9 a^{2} c d \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {b \,c^{2} a \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {\left (3 a^{2} d^{2}+7 a b c d -2 b^{2} c^{2}\right ) c \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, \left (F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )-E\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}\, d}\right ) \sqrt {\left (b \,x^{2}+a \right ) \left (d \,x^{2}+c \right )}}{3 c d \sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}}\) | \(422\) |
default | \(\frac {\sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}\, \left (\sqrt {-\frac {b}{a}}\, b^{3} c \,d^{2} x^{6}-3 \sqrt {-\frac {b}{a}}\, a^{2} b \,d^{3} x^{4}+\sqrt {-\frac {b}{a}}\, a \,b^{2} c \,d^{2} x^{4}+\sqrt {-\frac {b}{a}}\, b^{3} c^{2} d \,x^{4}+6 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{2} b c \,d^{2} x -8 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a \,b^{2} c^{2} d x +2 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) b^{3} c^{3} x +3 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{2} b c \,d^{2} x +7 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a \,b^{2} c^{2} d x -2 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) b^{3} c^{3} x -3 \sqrt {-\frac {b}{a}}\, a^{3} d^{3} x^{2}-3 \sqrt {-\frac {b}{a}}\, a^{2} b c \,d^{2} x^{2}+\sqrt {-\frac {b}{a}}\, a \,b^{2} c^{2} d \,x^{2}-3 \sqrt {-\frac {b}{a}}\, a^{3} c \,d^{2}\right )}{3 \left (b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c \right ) d^{2} \sqrt {-\frac {b}{a}}\, c x}\) | \(568\) |
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\[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\int { \frac {{\left (b x^{2} + a\right )}^{\frac {5}{2}}}{\sqrt {d x^{2} + c} x^{2}} \,d x } \]
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\[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\int \frac {\left (a + b x^{2}\right )^{\frac {5}{2}}}{x^{2} \sqrt {c + d x^{2}}}\, dx \]
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\[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\int { \frac {{\left (b x^{2} + a\right )}^{\frac {5}{2}}}{\sqrt {d x^{2} + c} x^{2}} \,d x } \]
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\[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\int { \frac {{\left (b x^{2} + a\right )}^{\frac {5}{2}}}{\sqrt {d x^{2} + c} x^{2}} \,d x } \]
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Timed out. \[ \int \frac {\left (a+b x^2\right )^{5/2}}{x^2 \sqrt {c+d x^2}} \, dx=\int \frac {{\left (b\,x^2+a\right )}^{5/2}}{x^2\,\sqrt {d\,x^2+c}} \,d x \]
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