Optimal. Leaf size=212 \[ -\frac {\sqrt {a+c x^2}}{a d^2 x}-\frac {e^3 \sqrt {a+c x^2}}{d^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {c e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d \left (c d^2+a e^2\right )^{3/2}}-\frac {2 e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d^3 \sqrt {c d^2+a e^2}}+\frac {2 e \tanh ^{-1}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{\sqrt {a} d^3} \]
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Rubi [A]
time = 0.12, antiderivative size = 212, normalized size of antiderivative = 1.00, number of steps
used = 11, number of rules used = 8, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.364, Rules used = {975, 270, 272,
65, 214, 745, 739, 212} \begin {gather*} \frac {2 e \tanh ^{-1}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{\sqrt {a} d^3}-\frac {c e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {a+c x^2} \sqrt {a e^2+c d^2}}\right )}{d \left (a e^2+c d^2\right )^{3/2}}-\frac {e^3 \sqrt {a+c x^2}}{d^2 (d+e x) \left (a e^2+c d^2\right )}-\frac {\sqrt {a+c x^2}}{a d^2 x}-\frac {2 e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {a+c x^2} \sqrt {a e^2+c d^2}}\right )}{d^3 \sqrt {a e^2+c d^2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 65
Rule 212
Rule 214
Rule 270
Rule 272
Rule 739
Rule 745
Rule 975
Rubi steps
\begin {align*} \int \frac {1}{x^2 (d+e x)^2 \sqrt {a+c x^2}} \, dx &=\int \left (\frac {1}{d^2 x^2 \sqrt {a+c x^2}}-\frac {2 e}{d^3 x \sqrt {a+c x^2}}+\frac {e^2}{d^2 (d+e x)^2 \sqrt {a+c x^2}}+\frac {2 e^2}{d^3 (d+e x) \sqrt {a+c x^2}}\right ) \, dx\\ &=\frac {\int \frac {1}{x^2 \sqrt {a+c x^2}} \, dx}{d^2}-\frac {(2 e) \int \frac {1}{x \sqrt {a+c x^2}} \, dx}{d^3}+\frac {\left (2 e^2\right ) \int \frac {1}{(d+e x) \sqrt {a+c x^2}} \, dx}{d^3}+\frac {e^2 \int \frac {1}{(d+e x)^2 \sqrt {a+c x^2}} \, dx}{d^2}\\ &=-\frac {\sqrt {a+c x^2}}{a d^2 x}-\frac {e^3 \sqrt {a+c x^2}}{d^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {e \text {Subst}\left (\int \frac {1}{x \sqrt {a+c x}} \, dx,x,x^2\right )}{d^3}-\frac {\left (2 e^2\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 )}{d^3}+\frac {\left (c e^2\right ) \int \frac {1}{(d+e x) \sqrt {a+c x^2}} \, dx}{d \left (c d^2+a e^2\right )}\\ &=-\frac {\sqrt {a+c x^2}}{a d^2 x}-\frac {e^3 \sqrt {a+c x^2}}{d^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {2 e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d^3 \sqrt {c d^2+a e^2}}-\frac {(2 e) \text {Subst}\left (\int \frac {1}{-\frac {a}{c}+\frac {x^2}{c}} \, dx,x,\sqrt {a+c x^2}\right )}{c d^3}-\frac {\left (c e^2\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 )}{d \left (c d^2+a e^2\right )}\\ &=-\frac {\sqrt {a+c x^2}}{a d^2 x}-\frac {e^3 \sqrt {a+c x^2}}{d^2 \left (c d^2+a e^2\right ) (d+e x)}-\frac {c e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d \left (c d^2+a e^2\right )^{3/2}}-\frac {2 e^2 \tanh ^{-1}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d^3 \sqrt {c d^2+a e^2}}+\frac {2 e \tanh ^{-1}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{\sqrt {a} d^3}\\ \end {align*}
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Mathematica [A]
time = 1.01, size = 183, normalized size = 0.86 \begin {gather*} \frac {-\frac {d \sqrt {a+c x^2} \left (c d^2 (d+e x)+a e^2 (d+2 e x)\right )}{a \left (c d^2+a e^2\right ) x (d+e x)}+\frac {2 e^2 \left (3 c d^2+2 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 {4 e \tanh ^{-1}\left (\frac {\sqrt {c} x-\sqrt {a+c x^2}}{\sqrt {a}}\right )}{\sqrt {a}}}{d^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. \(394\) vs.
\(2(190)=380\).
time = 0.08, size = 395, normalized size = 1.86
method | result | size |
default | \(-\frac {2 e \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{d^{3} \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}-\frac {\sqrt {c \,x^{2}+a}}{a \,d^{2} x}+\frac {-\frac {e^{2} \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{\left (a \,e^{2}+c \,d^{2}\right ) \left (x +\frac {d}{e}\right )}-\frac {c d e \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{\left (a \,e^{2}+c \,d^{2}\right ) \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}}{d^{2}}+\frac {2 e \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {c \,x^{2}+a}}{x}\right )}{d^{3} \sqrt {a}}\) | \(395\) |
risch | \(-\frac {\sqrt {c \,x^{2}+a}}{a \,d^{2} x}-\frac {2 e \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{d^{3} \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}-\frac {e^{2} \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{d^{2} \left (a \,e^{2}+c \,d^{2}\right ) \left (x +\frac {d}{e}\right )}-\frac {e c \ln \left (\frac {\frac {2 a \,e^{2}+2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}\, \sqrt {c \left (x +\frac {d}{e}\right )^{2}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{d \left (a \,e^{2}+c \,d^{2}\right ) \sqrt {\frac {a \,e^{2}+c \,d^{2}}{e^{2}}}}+\frac {2 e \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {c \,x^{2}+a}}{x}\right )}{d^{3} \sqrt {a}}\) | \(395\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 4.18, size = 1479, normalized size = 6.98 \begin {gather*} \left [\frac {{\left (3 \, a c d^{2} x^{2} e^{3} + 3 \, a c d^{3} x e^{2} + 2 \, a^{2} x^{2} e^{5} + 2 \, a^{2} d x e^{4}\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^{2} e^{2} + c^{2} d^{5} x e + 2 \, a c d^{2} x^{2} e^{4} + 2 \, a c d^{3} x e^{3} + a^{2} x^{2} e^{6} + a^{2} d x e^{5}\right )} \sqrt {a} \log \left (-\frac {c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) - 2 \, {\left (c^{2} d^{5} x e + c^{2} d^{6} + 3 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + 2 \, a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c x^{2} + a}}{2 \, {\left (a c^{2} d^{7} x^{2} e + a c^{2} d^{8} x + 2 \, a^{2} c d^{5} x^{2} e^{3} + 2 \, a^{2} c d^{6} x e^{2} + a^{3} d^{3} x^{2} e^{5} + a^{3} d^{4} x e^{4}\right )}}, \frac {{\left (3 \, a c d^{2} x^{2} e^{3} + 3 \, a c d^{3} x e^{2} + 2 \, a^{2} x^{2} e^{5} + 2 \, a^{2} d x e^{4}\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^{4} x^{2} e^{2} + c^{2} d^{5} x e + 2 \, a c d^{2} x^{2} e^{4} + 2 \, a c d^{3} x e^{3} + a^{2} x^{2} e^{6} + a^{2} d x e^{5}\right )} \sqrt {a} \log \left (-\frac {c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) - {\left (c^{2} d^{5} x e + c^{2} d^{6} + 3 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + 2 \, a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c x^{2} + a}}{a c^{2} d^{7} x^{2} e + a c^{2} d^{8} x + 2 \, a^{2} c d^{5} x^{2} e^{3} + 2 \, a^{2} c d^{6} x e^{2} + a^{3} d^{3} x^{2} e^{5} + a^{3} d^{4} x e^{4}}, -\frac {4 \, {\left (c^{2} d^{4} x^{2} e^{2} + c^{2} d^{5} x e + 2 \, a c d^{2} x^{2} e^{4} + 2 \, a c d^{3} x e^{3} + a^{2} x^{2} e^{6} + a^{2} d x e^{5}\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {-a}}{\sqrt {c x^{2} + a}}\right ) - {\left (3 \, a c d^{2} x^{2} e^{3} + 3 \, a c d^{3} x e^{2} + 2 \, a^{2} x^{2} e^{5} + 2 \, a^{2} d x e^{4}\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^{5} x e + c^{2} d^{6} + 3 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + 2 \, a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c x^{2} + a}}{2 \, {\left (a c^{2} d^{7} x^{2} e + a c^{2} d^{8} x + 2 \, a^{2} c d^{5} x^{2} e^{3} + 2 \, a^{2} c d^{6} x e^{2} + a^{3} d^{3} x^{2} e^{5} + a^{3} d^{4} x e^{4}\right )}}, \frac {{\left (3 \, a c d^{2} x^{2} e^{3} + 3 \, a c d^{3} x e^{2} + 2 \, a^{2} x^{2} e^{5} + 2 \, a^{2} d x e^{4}\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^{4} x^{2} e^{2} + c^{2} d^{5} x e + 2 \, a c d^{2} x^{2} e^{4} + 2 \, a c d^{3} x e^{3} + a^{2} x^{2} e^{6} + a^{2} d x e^{5}\right )} \sqrt {-a} \arctan \left (\frac {\sqrt {-a}}{\sqrt {c x^{2} + a}}\right ) - {\left (c^{2} d^{5} x e + c^{2} d^{6} + 3 \, a c d^{3} x e^{3} + 2 \, a c d^{4} e^{2} + 2 \, a^{2} d x e^{5} + a^{2} d^{2} e^{4}\right )} \sqrt {c x^{2} + a}}{a c^{2} d^{7} x^{2} e + a c^{2} d^{8} x + 2 \, a^{2} c d^{5} x^{2} e^{3} + 2 \, a^{2} c d^{6} x e^{2} + a^{3} d^{3} x^{2} e^{5} + a^{3} d^{4} x e^{4}}\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 {1}{x^{2} \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 = -0.00 \begin {gather*} \int \frac {1}{x^2\,\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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