Optimal. Leaf size=160 \[ \frac {\sqrt {a+c x^2}}{c e^2}+\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {2 d \tanh ^{-1}\left (\frac {\sqrt {c} x}{\sqrt {a+c x^2}}\right )}{\sqrt {c} e^3}-\frac {d^2 \left (2 c d^2+3 a e^2\right ) \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{e^3 \left (c d^2+a e^2\right )^{3/2}} \]
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Rubi [A]
time = 0.21, antiderivative size = 160, normalized size of antiderivative = 1.00, number of steps
used = 7, number of rules used = 6, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.273, Rules used = {1665, 1668,
858, 223, 212, 739} \begin {gather*} -\frac {d^2 \left (3 a e^2+2 c d^2\right ) \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {a+c x^2} \sqrt {a e^2+c d^2}}\right )}{e^3 \left (a e^2+c d^2\right )^{3/2}}+\frac {d^3 \sqrt {a+c x^2}}{e^2 (d+e x) \left (a e^2+c d^2\right )}-\frac {2 d \tanh ^{-1}\left (\frac {\sqrt {c} x}{\sqrt {a+c x^2}}\right )}{\sqrt {c} e^3}+\frac {\sqrt {a+c x^2}}{c e^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 212
Rule 223
Rule 739
Rule 858
Rule 1665
Rule 1668
Rubi steps
\begin {align*} \int \frac {x^3}{(d+e x)^2 \sqrt {a+c x^2}} \, dx &=\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {\int \frac {-\frac {a d^2}{e}+d \left (a+\frac {c d^2}{e^2}\right ) x-\frac {\left (c d^2+a e^2\right ) x^2}{e}}{(d+e x) \sqrt {a+c x^2}} \, dx}{c d^2+a e^2}\\ &=\frac {\sqrt {a+c x^2}}{c e^2}+\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {\int \frac {-a c d^2 e+2 c d \left (c d^2+a e^2\right ) x}{(d+e x) \sqrt {a+c x^2}} \, dx}{c e^2 \left (c d^2+a e^2\right )}\\ &=\frac {\sqrt {a+c x^2}}{c e^2}+\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {(2 d) \int \frac {1}{\sqrt {a+c x^2}} \, dx}{e^3}+\frac {\left (d^2 \left (2 c d^2+3 a e^2\right )\right ) \int \frac {1}{(d+e x) \sqrt {a+c x^2}} \, dx}{e^3 \left (c d^2+a e^2\right )}\\ &=\frac {\sqrt {a+c x^2}}{c e^2}+\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {(2 d) \text {Subst}\left (\int \frac {1}{1-c x^2} \, dx,x,\frac {x}{\sqrt {a+c x^2}}\right )}{e^3}-\frac {\left (d^2 \left (2 c d^2+3 a e^2\right )\right ) \text {Subst}\left (\int \frac {1}{c d^2+a e^2-x^2} \, dx,x,\frac {a e-c d x}{\sqrt {a+c x^2}}\right )}{e^3 \left (c d^2+a e^2\right )}\\ &=\frac {\sqrt {a+c x^2}}{c e^2}+\frac {d^3 \sqrt {a+c x^2}}{e^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {2 d \tanh ^{-1}\left (\frac {\sqrt {c} x}{\sqrt {a+c x^2}}\right )}{\sqrt {c} e^3}-\frac {d^2 \left (2 c d^2+3 a e^2\right ) \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{e^3 \left (c d^2+a e^2\right )^{3/2}}\\ \end {align*}
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Mathematica [A]
time = 0.86, size = 173, normalized size = 1.08 \begin {gather*} \frac {\frac {e \sqrt {a+c x^2} \left (a e^2 (d+e x)+c d^2 (2 d+e x)\right )}{c \left (c d^2+a e^2\right ) (d+e x)}+\frac {2 d^2 \left (2 c d^2+3 a e^2\right ) \tan ^{-1}\left (\frac {\sqrt {c} (d+e x)-e \sqrt {a+c x^2}}{\sqrt {-c d^2-a e^2}}\right )}{\left (-c d^2-a e^2\right )^{3/2}}+\frac {2 d \log \left (-\sqrt {c} x+\sqrt {a+c x^2}\right )}{\sqrt {c}}}{e^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(389\) vs.
\(2(144)=288\).
time = 0.08, size = 390, normalized size = 2.44
method | result | size |
risch | \(\frac {\sqrt {c \,x^{2}+a}}{c \,e^{2}}-\frac {2 d \ln \left (x \sqrt {c}+\sqrt {c \,x^{2}+a}\right )}{e^{3} \sqrt {c}}-\frac {3 d^{2} \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{e^{4} \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}+\frac {d^{3} \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{e^{3} \left (a \,e^{2}+c \,d^{2}\right ) \left (x +\frac {d}{e}\right )}+\frac {d^{4} c \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{e^{4} \left (a \,e^{2}+c \,d^{2}\right ) \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}\) | \(386\) |
default | \(\frac {\sqrt {c \,x^{2}+a}}{c \,e^{2}}-\frac {2 d \ln \left (x \sqrt {c}+\sqrt {c \,x^{2}+a}\right )}{e^{3} \sqrt {c}}-\frac {3 d^{2} \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{e^{4} \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}-\frac {d^{3} \left (-\frac {e^{2} \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{\left (a \,e^{2}+c \,d^{2}\right ) \left (x +\frac {d}{e}\right )}-\frac {c d e \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{\left (a \,e^{2}+c \,d^{2}\right ) \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}\right )}{e^{5}}\) | \(390\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.31, size = 189, normalized size = 1.18 \begin {gather*} -\frac {c d^{4} \operatorname {arsinh}\left (\frac {c d x}{\sqrt {a c} {\left | x e + d \right |}} - \frac {a e}{\sqrt {a c} {\left | x e + d \right |}}\right ) e^{\left (-6\right )}}{{\left (c d^{2} e^{\left (-2\right )} + a\right )}^{\frac {3}{2}}} + \frac {3 \, d^{2} \operatorname {arsinh}\left (\frac {c d x}{\sqrt {a c} {\left | x e + d \right |}} - \frac {a e}{\sqrt {a c} {\left | x e + d \right |}}\right ) e^{\left (-4\right )}}{\sqrt {c d^{2} e^{\left (-2\right )} + a}} + \frac {\sqrt {c x^{2} + a} d^{3}}{c d^{2} x e^{3} + c d^{3} e^{2} + a x e^{5} + a d e^{4}} - \frac {2 \, d \operatorname {arsinh}\left (\frac {c x}{\sqrt {a c}}\right ) e^{\left (-3\right )}}{\sqrt {c}} + \frac {\sqrt {c x^{2} + a} e^{\left (-2\right )}}{c} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 327 vs.
\(2 (139) = 278\).
time = 11.06, size = 1376, normalized size = 8.60 \begin {gather*} \left [\frac {2 \, {\left (c^{2} d^{5} x e + c^{2} d^{6} + 2 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c} \log \left (-2 \, c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {c} x - a\right ) + {\left (2 \, c^{2} d^{4} x e + 2 \, c^{2} d^{5} + 3 \, a c d^{2} x e^{3} + 3 \, a c d^{3} e^{2}\right )} \sqrt {c d^{2} + a e^{2}} \log \left (-\frac {2 \, c^{2} d^{2} x^{2} - 2 \, a c d x e + a c d^{2} + 2 \, \sqrt {c d^{2} + a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a} + {\left (a c x^{2} + 2 \, a^{2}\right )} e^{2}}{x^{2} e^{2} + 2 \, d x e + d^{2}}\right ) + 2 \, {\left (c^{2} d^{4} x e^{2} + 2 \, c^{2} d^{5} e + 2 \, a c d^{2} x e^{4} + 3 \, a c d^{3} e^{3} + a^{2} x e^{6} + a^{2} d e^{5}\right )} \sqrt {c x^{2} + a}}{2 \, {\left (c^{3} d^{4} x e^{4} + c^{3} d^{5} e^{3} + 2 \, a c^{2} d^{2} x e^{6} + 2 \, a c^{2} d^{3} e^{5} + a^{2} c x e^{8} + a^{2} c d e^{7}\right )}}, \frac {{\left (2 \, c^{2} d^{4} x e + 2 \, c^{2} d^{5} + 3 \, a c d^{2} x e^{3} + 3 \, a c d^{3} e^{2}\right )} \sqrt {-c d^{2} - a e^{2}} \arctan \left (-\frac {\sqrt {-c d^{2} - a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{c^{2} d^{2} x^{2} + a c d^{2} + {\left (a c x^{2} + a^{2}\right )} e^{2}}\right ) + {\left (c^{2} d^{5} x e + c^{2} d^{6} + 2 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c} \log \left (-2 \, c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {c} x - a\right ) + {\left (c^{2} d^{4} x e^{2} + 2 \, c^{2} d^{5} e + 2 \, a c d^{2} x e^{4} + 3 \, a c d^{3} e^{3} + a^{2} x e^{6} + a^{2} d e^{5}\right )} \sqrt {c x^{2} + a}}{c^{3} d^{4} x e^{4} + c^{3} d^{5} e^{3} + 2 \, a c^{2} d^{2} x e^{6} + 2 \, a c^{2} d^{3} e^{5} + a^{2} c x e^{8} + a^{2} c d e^{7}}, \frac {4 \, {\left (c^{2} d^{5} x e + c^{2} d^{6} + 2 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {-c} x}{\sqrt {c x^{2} + a}}\right ) + {\left (2 \, c^{2} d^{4} x e + 2 \, c^{2} d^{5} + 3 \, a c d^{2} x e^{3} + 3 \, a c d^{3} e^{2}\right )} \sqrt {c d^{2} + a e^{2}} \log \left (-\frac {2 \, c^{2} d^{2} x^{2} - 2 \, a c d x e + a c d^{2} + 2 \, \sqrt {c d^{2} + a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a} + {\left (a c x^{2} + 2 \, a^{2}\right )} e^{2}}{x^{2} e^{2} + 2 \, d x e + d^{2}}\right ) + 2 \, {\left (c^{2} d^{4} x e^{2} + 2 \, c^{2} d^{5} e + 2 \, a c d^{2} x e^{4} + 3 \, a c d^{3} e^{3} + a^{2} x e^{6} + a^{2} d e^{5}\right )} \sqrt {c x^{2} + a}}{2 \, {\left (c^{3} d^{4} x e^{4} + c^{3} d^{5} e^{3} + 2 \, a c^{2} d^{2} x e^{6} + 2 \, a c^{2} d^{3} e^{5} + a^{2} c x e^{8} + a^{2} c d e^{7}\right )}}, \frac {{\left (2 \, c^{2} d^{4} x e + 2 \, c^{2} d^{5} + 3 \, a c d^{2} x e^{3} + 3 \, a c d^{3} e^{2}\right )} \sqrt {-c d^{2} - a e^{2}} \arctan \left (-\frac {\sqrt {-c d^{2} - a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{c^{2} d^{2} x^{2} + a c d^{2} + {\left (a c x^{2} + a^{2}\right )} e^{2}}\right ) + 2 \, {\left (c^{2} d^{5} x e + c^{2} d^{6} + 2 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {-c} x}{\sqrt {c x^{2} + a}}\right ) + {\left (c^{2} d^{4} x e^{2} + 2 \, c^{2} d^{5} e + 2 \, a c d^{2} x e^{4} + 3 \, a c d^{3} e^{3} + a^{2} x e^{6} + a^{2} d e^{5}\right )} \sqrt {c x^{2} + a}}{c^{3} d^{4} x e^{4} + c^{3} d^{5} e^{3} + 2 \, a c^{2} d^{2} x e^{6} + 2 \, a c^{2} d^{3} e^{5} + a^{2} c x e^{8} + a^{2} c d e^{7}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {x^{3}}{\sqrt {a + c x^{2}} \left (d + e x\right )^{2}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: TypeError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {x^3}{\sqrt {c\,x^2+a}\,{\left (d+e\,x\right )}^2} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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