Integrand size = 27, antiderivative size = 120 \[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}+\frac {e \text {arctanh}\left (\frac {\sqrt {d^2-e^2 x^2}}{d}\right )}{d^5} \]
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Time = 0.06 (sec) , antiderivative size = 120, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {871, 837, 821, 272, 65, 214} \[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {e \text {arctanh}\left (\frac {\sqrt {d^2-e^2 x^2}}{d}\right )}{d^5}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}+\frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}} \]
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Rule 65
Rule 214
Rule 272
Rule 821
Rule 837
Rule 871
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {\int \frac {-4 d e^2+3 e^3 x}{x^2 \left (d^2-e^2 x^2\right )^{3/2}} \, dx}{3 d^2 e^2} \\ & = \frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {\int \frac {-8 d^3 e^4+3 d^2 e^5 x}{x^2 \sqrt {d^2-e^2 x^2}} \, dx}{3 d^6 e^4} \\ & = \frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}-\frac {e \int \frac {1}{x \sqrt {d^2-e^2 x^2}} \, dx}{d^4} \\ & = \frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}-\frac {e \text {Subst}\left (\int \frac {1}{x \sqrt {d^2-e^2 x}} \, dx,x,x^2\right )}{2 d^4} \\ & = \frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}+\frac {\text {Subst}\left (\int \frac {1}{\frac {d^2}{e^2}-\frac {x^2}{e^2}} \, dx,x,\sqrt {d^2-e^2 x^2}\right )}{d^4 e} \\ & = \frac {4 d-3 e x}{3 d^4 x \sqrt {d^2-e^2 x^2}}+\frac {1}{3 d^2 x (d+e x) \sqrt {d^2-e^2 x^2}}-\frac {8 \sqrt {d^2-e^2 x^2}}{3 d^5 x}+\frac {e \tanh ^{-1}\left (\frac {\sqrt {d^2-e^2 x^2}}{d}\right )}{d^5} \\ \end{align*}
Time = 0.31 (sec) , antiderivative size = 124, normalized size of antiderivative = 1.03 \[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {\frac {d \sqrt {d^2-e^2 x^2} \left (3 d^3+7 d^2 e x-5 d e^2 x^2-8 e^3 x^3\right )}{x (-d+e x) (d+e x)^2}+3 \sqrt {d^2} e \log (x)-3 \sqrt {d^2} e \log \left (\sqrt {d^2}-\sqrt {d^2-e^2 x^2}\right )}{3 d^6} \]
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Time = 0.40 (sec) , antiderivative size = 198, normalized size of antiderivative = 1.65
method | result | size |
risch | \(-\frac {\sqrt {-e^{2} x^{2}+d^{2}}}{d^{5} x}+\frac {e \ln \left (\frac {2 d^{2}+2 \sqrt {d^{2}}\, \sqrt {-e^{2} x^{2}+d^{2}}}{x}\right )}{d^{4} \sqrt {d^{2}}}-\frac {\sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}{6 d^{4} e \left (x +\frac {d}{e}\right )^{2}}-\frac {17 \sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}{12 d^{5} \left (x +\frac {d}{e}\right )}-\frac {\sqrt {-\left (x -\frac {d}{e}\right )^{2} e^{2}-2 d e \left (x -\frac {d}{e}\right )}}{4 d^{5} \left (x -\frac {d}{e}\right )}\) | \(198\) |
default | \(\frac {-\frac {1}{d^{2} x \sqrt {-e^{2} x^{2}+d^{2}}}+\frac {2 e^{2} x}{d^{4} \sqrt {-e^{2} x^{2}+d^{2}}}}{d}-\frac {e \left (\frac {1}{d^{2} \sqrt {-e^{2} x^{2}+d^{2}}}-\frac {\ln \left (\frac {2 d^{2}+2 \sqrt {d^{2}}\, \sqrt {-e^{2} x^{2}+d^{2}}}{x}\right )}{d^{2} \sqrt {d^{2}}}\right )}{d^{2}}+\frac {e \left (-\frac {1}{3 d e \left (x +\frac {d}{e}\right ) \sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}-\frac {-2 \left (x +\frac {d}{e}\right ) e^{2}+2 d e}{3 e \,d^{3} \sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}\right )}{d^{2}}\) | \(223\) |
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Time = 0.30 (sec) , antiderivative size = 181, normalized size of antiderivative = 1.51 \[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=-\frac {4 \, e^{4} x^{4} + 4 \, d e^{3} x^{3} - 4 \, d^{2} e^{2} x^{2} - 4 \, d^{3} e x + 3 \, {\left (e^{4} x^{4} + d e^{3} x^{3} - d^{2} e^{2} x^{2} - d^{3} e x\right )} \log \left (-\frac {d - \sqrt {-e^{2} x^{2} + d^{2}}}{x}\right ) + {\left (8 \, e^{3} x^{3} + 5 \, d e^{2} x^{2} - 7 \, d^{2} e x - 3 \, d^{3}\right )} \sqrt {-e^{2} x^{2} + d^{2}}}{3 \, {\left (d^{5} e^{3} x^{4} + d^{6} e^{2} x^{3} - d^{7} e x^{2} - d^{8} x\right )}} \]
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\[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int \frac {1}{x^{2} \left (- \left (- d + e x\right ) \left (d + e x\right )\right )^{\frac {3}{2}} \left (d + e x\right )}\, dx \]
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\[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int { \frac {1}{{\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {3}{2}} {\left (e x + d\right )} x^{2}} \,d x } \]
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\[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int { \frac {1}{{\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {3}{2}} {\left (e x + d\right )} x^{2}} \,d x } \]
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Timed out. \[ \int \frac {1}{x^2 (d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int \frac {1}{x^2\,{\left (d^2-e^2\,x^2\right )}^{3/2}\,\left (d+e\,x\right )} \,d x \]
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