Integrand size = 30, antiderivative size = 372 \[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}-\frac {2 \sqrt [4]{c} \left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) e^{7/2} \sqrt {1-\frac {d x^2}{c}} \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{21 b^3 d^{5/4} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} (b c-a d) e^{7/2} \sqrt {1-\frac {d x^2}{c}} \operatorname {EllipticPi}\left (-\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}},\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} (b c-a d) e^{7/2} \sqrt {1-\frac {d x^2}{c}} \operatorname {EllipticPi}\left (\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}},\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}} \]
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Time = 0.54 (sec) , antiderivative size = 372, normalized size of antiderivative = 1.00, number of steps used = 11, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {477, 489, 596, 537, 230, 227, 418, 1233, 1232} \[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=-\frac {2 \sqrt [4]{c} e^{7/2} \sqrt {1-\frac {d x^2}{c}} \left (-21 a^2 d^2+14 a b c d+2 b^2 c^2\right ) \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{21 b^3 d^{5/4} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} e^{7/2} \sqrt {1-\frac {d x^2}{c}} (b c-a d) \operatorname {EllipticPi}\left (-\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}},\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} e^{7/2} \sqrt {1-\frac {d x^2}{c}} (b c-a d) \operatorname {EllipticPi}\left (\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}},\arcsin \left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right ),-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}}+\frac {2 e^3 \sqrt {e x} \sqrt {c-d x^2} (2 b c-7 a d)}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b} \]
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Rule 227
Rule 230
Rule 418
Rule 477
Rule 489
Rule 537
Rule 596
Rule 1232
Rule 1233
Rubi steps \begin{align*} \text {integral}& = \frac {2 \text {Subst}\left (\int \frac {x^8 \sqrt {c-\frac {d x^4}{e^2}}}{a-\frac {b x^4}{e^2}} \, dx,x,\sqrt {e x}\right )}{e} \\ & = -\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}+\frac {(2 e) \text {Subst}\left (\int \frac {x^4 \left (5 a c+\frac {(2 b c-7 a d) x^4}{e^2}\right )}{\left (a-\frac {b x^4}{e^2}\right ) \sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{7 b} \\ & = \frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}-\frac {\left (2 e^5\right ) \text {Subst}\left (\int \frac {\frac {a c (2 b c-7 a d)}{e^2}-\frac {\left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) x^4}{e^4}}{\left (a-\frac {b x^4}{e^2}\right ) \sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{21 b^2 d} \\ & = \frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}+\frac {\left (2 a^2 (b c-a d) e^3\right ) \text {Subst}\left (\int \frac {1}{\left (a-\frac {b x^4}{e^2}\right ) \sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{b^3}-\frac {\left (2 \left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) e^3\right ) \text {Subst}\left (\int \frac {1}{\sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{21 b^3 d} \\ & = \frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}+\frac {\left (a (b c-a d) e^3\right ) \text {Subst}\left (\int \frac {1}{\left (1-\frac {\sqrt {b} x^2}{\sqrt {a} e}\right ) \sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{b^3}+\frac {\left (a (b c-a d) e^3\right ) \text {Subst}\left (\int \frac {1}{\left (1+\frac {\sqrt {b} x^2}{\sqrt {a} e}\right ) \sqrt {c-\frac {d x^4}{e^2}}} \, dx,x,\sqrt {e x}\right )}{b^3}-\frac {\left (2 \left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) e^3 \sqrt {1-\frac {d x^2}{c}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1-\frac {d x^4}{c e^2}}} \, dx,x,\sqrt {e x}\right )}{21 b^3 d \sqrt {c-d x^2}} \\ & = \frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}-\frac {2 \sqrt [4]{c} \left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) e^{7/2} \sqrt {1-\frac {d x^2}{c}} F\left (\left .\sin ^{-1}\left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right )\right |-1\right )}{21 b^3 d^{5/4} \sqrt {c-d x^2}}+\frac {\left (a (b c-a d) e^3 \sqrt {1-\frac {d x^2}{c}}\right ) \text {Subst}\left (\int \frac {1}{\left (1-\frac {\sqrt {b} x^2}{\sqrt {a} e}\right ) \sqrt {1-\frac {d x^4}{c e^2}}} \, dx,x,\sqrt {e x}\right )}{b^3 \sqrt {c-d x^2}}+\frac {\left (a (b c-a d) e^3 \sqrt {1-\frac {d x^2}{c}}\right ) \text {Subst}\left (\int \frac {1}{\left (1+\frac {\sqrt {b} x^2}{\sqrt {a} e}\right ) \sqrt {1-\frac {d x^4}{c e^2}}} \, dx,x,\sqrt {e x}\right )}{b^3 \sqrt {c-d x^2}} \\ & = \frac {2 (2 b c-7 a d) e^3 \sqrt {e x} \sqrt {c-d x^2}}{21 b^2 d}-\frac {2 e (e x)^{5/2} \sqrt {c-d x^2}}{7 b}-\frac {2 \sqrt [4]{c} \left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) e^{7/2} \sqrt {1-\frac {d x^2}{c}} F\left (\left .\sin ^{-1}\left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right )\right |-1\right )}{21 b^3 d^{5/4} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} (b c-a d) e^{7/2} \sqrt {1-\frac {d x^2}{c}} \Pi \left (-\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}};\left .\sin ^{-1}\left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right )\right |-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}}+\frac {a \sqrt [4]{c} (b c-a d) e^{7/2} \sqrt {1-\frac {d x^2}{c}} \Pi \left (\frac {\sqrt {b} \sqrt {c}}{\sqrt {a} \sqrt {d}};\left .\sin ^{-1}\left (\frac {\sqrt [4]{d} \sqrt {e x}}{\sqrt [4]{c} \sqrt {e}}\right )\right |-1\right )}{b^3 \sqrt [4]{d} \sqrt {c-d x^2}} \\ \end{align*}
Result contains higher order function than in optimal. Order 6 vs. order 4 in optimal.
Time = 11.18 (sec) , antiderivative size = 187, normalized size of antiderivative = 0.50 \[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\frac {2 e^3 \sqrt {e x} \left (-5 a \left (c-d x^2\right ) \left (-2 b c+7 a d+3 b d x^2\right )+5 a c (-2 b c+7 a d) \sqrt {1-\frac {d x^2}{c}} \operatorname {AppellF1}\left (\frac {1}{4},\frac {1}{2},1,\frac {5}{4},\frac {d x^2}{c},\frac {b x^2}{a}\right )+\left (2 b^2 c^2+14 a b c d-21 a^2 d^2\right ) x^2 \sqrt {1-\frac {d x^2}{c}} \operatorname {AppellF1}\left (\frac {5}{4},\frac {1}{2},1,\frac {9}{4},\frac {d x^2}{c},\frac {b x^2}{a}\right )\right )}{105 a b^2 d \sqrt {c-d x^2}} \]
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Time = 4.10 (sec) , antiderivative size = 523, normalized size of antiderivative = 1.41
method | result | size |
risch | \(-\frac {2 \left (3 b d \,x^{2}+7 a d -2 b c \right ) \sqrt {-d \,x^{2}+c}\, x \,e^{4}}{21 d \,b^{2} \sqrt {e x}}+\frac {\left (\frac {\left (21 a^{2} d^{2}-14 a b c d -2 b^{2} c^{2}\right ) \sqrt {c d}\, \sqrt {\frac {\left (x +\frac {\sqrt {c d}}{d}\right ) d}{\sqrt {c d}}}\, \sqrt {-\frac {2 \left (x -\frac {\sqrt {c d}}{d}\right ) d}{\sqrt {c d}}}\, \sqrt {-\frac {d x}{\sqrt {c d}}}\, F\left (\sqrt {\frac {\left (x +\frac {\sqrt {c d}}{d}\right ) d}{\sqrt {c d}}}, \frac {\sqrt {2}}{2}\right )}{b d \sqrt {-d e \,x^{3}+c e x}}+\frac {21 a^{2} \left (a d -b c \right ) d \left (\frac {\sqrt {c d}\, \sqrt {\frac {d x}{\sqrt {c d}}+1}\, \sqrt {-\frac {2 d x}{\sqrt {c d}}+2}\, \sqrt {-\frac {d x}{\sqrt {c d}}}\, \Pi \left (\sqrt {\frac {\left (x +\frac {\sqrt {c d}}{d}\right ) d}{\sqrt {c d}}}, -\frac {\sqrt {c d}}{d \left (-\frac {\sqrt {c d}}{d}-\frac {\sqrt {a b}}{b}\right )}, \frac {\sqrt {2}}{2}\right )}{2 \sqrt {a b}\, d \sqrt {-d e \,x^{3}+c e x}\, \left (-\frac {\sqrt {c d}}{d}-\frac {\sqrt {a b}}{b}\right )}-\frac {\sqrt {c d}\, \sqrt {\frac {d x}{\sqrt {c d}}+1}\, \sqrt {-\frac {2 d x}{\sqrt {c d}}+2}\, \sqrt {-\frac {d x}{\sqrt {c d}}}\, \Pi \left (\sqrt {\frac {\left (x +\frac {\sqrt {c d}}{d}\right ) d}{\sqrt {c d}}}, -\frac {\sqrt {c d}}{d \left (-\frac {\sqrt {c d}}{d}+\frac {\sqrt {a b}}{b}\right )}, \frac {\sqrt {2}}{2}\right )}{2 \sqrt {a b}\, d \sqrt {-d e \,x^{3}+c e x}\, \left (-\frac {\sqrt {c d}}{d}+\frac {\sqrt {a b}}{b}\right )}\right )}{b}\right ) e^{4} \sqrt {\left (-d \,x^{2}+c \right ) e x}}{21 d \,b^{2} \sqrt {e x}\, \sqrt {-d \,x^{2}+c}}\) | \(523\) |
elliptic | \(\text {Expression too large to display}\) | \(1005\) |
default | \(\text {Expression too large to display}\) | \(1468\) |
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Timed out. \[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\text {Timed out} \]
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\[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=- \int \frac {\left (e x\right )^{\frac {7}{2}} \sqrt {c - d x^{2}}}{- a + b x^{2}}\, dx \]
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\[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\int { -\frac {\sqrt {-d x^{2} + c} \left (e x\right )^{\frac {7}{2}}}{b x^{2} - a} \,d x } \]
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\[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\int { -\frac {\sqrt {-d x^{2} + c} \left (e x\right )^{\frac {7}{2}}}{b x^{2} - a} \,d x } \]
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Timed out. \[ \int \frac {(e x)^{7/2} \sqrt {c-d x^2}}{a-b x^2} \, dx=\int \frac {{\left (e\,x\right )}^{7/2}\,\sqrt {c-d\,x^2}}{a-b\,x^2} \,d x \]
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