Integrand size = 22, antiderivative size = 191 \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\frac {e \sqrt {a+c x^2}}{2 d^2 x^2}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3}-\frac {e^2 \sqrt {c d^2+a e^2} \text {arctanh}\left (\frac {a e-c d x}{\sqrt {c d^2+a e^2} \sqrt {a+c x^2}}\right )}{d^4}+\frac {c e \text {arctanh}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{2 \sqrt {a} d^2}+\frac {\sqrt {a} e^3 \text {arctanh}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{d^4} \]
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Time = 0.16 (sec) , antiderivative size = 191, normalized size of antiderivative = 1.00, number of steps used = 20, number of rules used = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.591, Rules used = {975, 270, 272, 43, 65, 214, 283, 223, 212, 52, 749, 858, 739} \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\frac {\sqrt {a} e^3 \text {arctanh}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{d^4}+\frac {c e \text {arctanh}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{2 \sqrt {a} d^2}-\frac {e^2 \sqrt {a e^2+c d^2} \text {arctanh}\left (\frac {a e-c d x}{\sqrt {a+c x^2} \sqrt {a e^2+c d^2}}\right )}{d^4}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}+\frac {e \sqrt {a+c x^2}}{2 d^2 x^2}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3} \]
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Rule 43
Rule 52
Rule 65
Rule 212
Rule 214
Rule 223
Rule 270
Rule 272
Rule 283
Rule 739
Rule 749
Rule 858
Rule 975
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {\sqrt {a+c x^2}}{d x^4}-\frac {e \sqrt {a+c x^2}}{d^2 x^3}+\frac {e^2 \sqrt {a+c x^2}}{d^3 x^2}-\frac {e^3 \sqrt {a+c x^2}}{d^4 x}+\frac {e^4 \sqrt {a+c x^2}}{d^4 (d+e x)}\right ) \, dx \\ & = \frac {\int \frac {\sqrt {a+c x^2}}{x^4} \, dx}{d}-\frac {e \int \frac {\sqrt {a+c x^2}}{x^3} \, dx}{d^2}+\frac {e^2 \int \frac {\sqrt {a+c x^2}}{x^2} \, dx}{d^3}-\frac {e^3 \int \frac {\sqrt {a+c x^2}}{x} \, dx}{d^4}+\frac {e^4 \int \frac {\sqrt {a+c x^2}}{d+e x} \, dx}{d^4} \\ & = \frac {e^3 \sqrt {a+c x^2}}{d^4}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3}-\frac {e \text {Subst}\left (\int \frac {\sqrt {a+c x}}{x^2} \, dx,x,x^2\right )}{2 d^2}+\frac {\left (c e^2\right ) \int \frac {1}{\sqrt {a+c x^2}} \, dx}{d^3}-\frac {e^3 \text {Subst}\left (\int \frac {\sqrt {a+c x}}{x} \, dx,x,x^2\right )}{2 d^4}+\frac {e^3 \int \frac {a e-c d x}{(d+e x) \sqrt {a+c x^2}} \, dx}{d^4} \\ & = \frac {e \sqrt {a+c x^2}}{2 d^2 x^2}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3}-\frac {(c e) \text {Subst}\left (\int \frac {1}{x \sqrt {a+c x}} \, dx,x,x^2\right )}{4 d^2}-\frac {\left (c e^2\right ) \int \frac {1}{\sqrt {a+c x^2}} \, dx}{d^3}+\frac {\left (c e^2\right ) \text {Subst}\left (\int \frac {1}{1-c x^2} \, dx,x,\frac {x}{\sqrt {a+c x^2}}\right )}{d^3}-\frac {\left (a e^3\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {a+c x}} \, dx,x,x^2\right )}{2 d^4}+\frac {\left (e^2 \left (c d^2+a e^2\right )\right ) \int \frac {1}{(d+e x) \sqrt {a+c x^2}} \, dx}{d^4} \\ & = \frac {e \sqrt {a+c x^2}}{2 d^2 x^2}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3}+\frac {\sqrt {c} e^2 \tanh ^{-1}\left (\frac {\sqrt {c} x}{\sqrt {a+c x^2}}\right )}{d^3}-\frac {e \text {Subst}\left (\int \frac {1}{-\frac {a}{c}+\frac {x^2}{c}} \, dx,x,\sqrt {a+c x^2}\right )}{2 d^2}-\frac {\left (c e^2\right ) \text {Subst}\left (\int \frac {1}{1-c x^2} \, dx,x,\frac {x}{\sqrt {a+c x^2}}\right )}{d^3}-\frac {\left (a e^3\right ) \text {Subst}\left (\int \frac {1}{-\frac {a}{c}+\frac {x^2}{c}} \, dx,x,\sqrt {a+c x^2}\right )}{c d^4}-\frac {\left (e^2 \left (c d^2+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 )}{d^4} \\ & = \frac {e \sqrt {a+c x^2}}{2 d^2 x^2}-\frac {e^2 \sqrt {a+c x^2}}{d^3 x}-\frac {\left (a+c x^2\right )^{3/2}}{3 a d x^3}-\frac {e^2 \sqrt {c d^2+a 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^4}+\frac {c e \tanh ^{-1}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{2 \sqrt {a} d^2}+\frac {\sqrt {a} e^3 \tanh ^{-1}\left (\frac {\sqrt {a+c x^2}}{\sqrt {a}}\right )}{d^4} \\ \end{align*}
Time = 0.61 (sec) , antiderivative size = 173, normalized size of antiderivative = 0.91 \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=-\frac {\frac {d \sqrt {a+c x^2} \left (2 a d^2-3 a d e x+2 c d^2 x^2+6 a e^2 x^2\right )}{a x^3}-12 e^2 \sqrt {-c d^2-a e^2} \arctan \left (\frac {\sqrt {c} (d+e x)-e \sqrt {a+c x^2}}{\sqrt {-c d^2-a e^2}}\right )+\frac {6 e \left (c d^2+2 a e^2\right ) \text {arctanh}\left (\frac {\sqrt {c} x-\sqrt {a+c x^2}}{\sqrt {a}}\right )}{\sqrt {a}}}{6 d^4} \]
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Time = 0.45 (sec) , antiderivative size = 241, normalized size of antiderivative = 1.26
method | result | size |
risch | \(-\frac {\sqrt {c \,x^{2}+a}\, \left (6 a \,e^{2} x^{2}+2 c \,d^{2} x^{2}-3 a d e x +2 a \,d^{2}\right )}{6 d^{3} x^{3} a}+\frac {e \left (-\frac {\left (-2 e^{2} a -c \,d^{2}\right ) \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {c \,x^{2}+a}}{x}\right )}{d \sqrt {a}}-\frac {2 \left (e^{2} a +c \,d^{2}\right ) \ln \left (\frac {\frac {2 e^{2} a +2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {e^{2} a +c \,d^{2}}{e^{2}}}\, \sqrt {\left (x +\frac {d}{e}\right )^{2} c -\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {e^{2} a +c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{d \sqrt {\frac {e^{2} a +c \,d^{2}}{e^{2}}}}\right )}{2 d^{3}}\) | \(241\) |
default | \(-\frac {\left (c \,x^{2}+a \right )^{\frac {3}{2}}}{3 a d \,x^{3}}+\frac {e^{2} \left (-\frac {\left (c \,x^{2}+a \right )^{\frac {3}{2}}}{a x}+\frac {2 c \left (\frac {x \sqrt {c \,x^{2}+a}}{2}+\frac {a \ln \left (x \sqrt {c}+\sqrt {c \,x^{2}+a}\right )}{2 \sqrt {c}}\right )}{a}\right )}{d^{3}}-\frac {e^{3} \left (\sqrt {c \,x^{2}+a}-\sqrt {a}\, \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {c \,x^{2}+a}}{x}\right )\right )}{d^{4}}-\frac {e \left (-\frac {\left (c \,x^{2}+a \right )^{\frac {3}{2}}}{2 a \,x^{2}}+\frac {c \left (\sqrt {c \,x^{2}+a}-\sqrt {a}\, \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {c \,x^{2}+a}}{x}\right )\right )}{2 a}\right )}{d^{2}}+\frac {e^{3} \left (\sqrt {\left (x +\frac {d}{e}\right )^{2} c -\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {e^{2} a +c \,d^{2}}{e^{2}}}-\frac {\sqrt {c}\, d \ln \left (\frac {-\frac {c d}{e}+c \left (x +\frac {d}{e}\right )}{\sqrt {c}}+\sqrt {\left (x +\frac {d}{e}\right )^{2} c -\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {e^{2} a +c \,d^{2}}{e^{2}}}\right )}{e}-\frac {\left (e^{2} a +c \,d^{2}\right ) \ln \left (\frac {\frac {2 e^{2} a +2 c \,d^{2}}{e^{2}}-\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+2 \sqrt {\frac {e^{2} a +c \,d^{2}}{e^{2}}}\, \sqrt {\left (x +\frac {d}{e}\right )^{2} c -\frac {2 c d \left (x +\frac {d}{e}\right )}{e}+\frac {e^{2} a +c \,d^{2}}{e^{2}}}}{x +\frac {d}{e}}\right )}{e^{2} \sqrt {\frac {e^{2} a +c \,d^{2}}{e^{2}}}}\right )}{d^{4}}\) | \(465\) |
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Time = 0.45 (sec) , antiderivative size = 824, normalized size of antiderivative = 4.31 \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\left [\frac {6 \, \sqrt {c d^{2} + a e^{2}} a e^{2} x^{3} \log \left (\frac {2 \, a c d e x - a c d^{2} - 2 \, a^{2} e^{2} - {\left (2 \, c^{2} d^{2} + a c e^{2}\right )} x^{2} - 2 \, \sqrt {c d^{2} + a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{e^{2} x^{2} + 2 \, d e x + d^{2}}\right ) + 3 \, {\left (c d^{2} e + 2 \, a e^{3}\right )} \sqrt {a} x^{3} \log \left (-\frac {c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) + 2 \, {\left (3 \, a d^{2} e x - 2 \, a d^{3} - 2 \, {\left (c d^{3} + 3 \, a d e^{2}\right )} x^{2}\right )} \sqrt {c x^{2} + a}}{12 \, a d^{4} x^{3}}, -\frac {12 \, \sqrt {-c d^{2} - a e^{2}} a e^{2} x^{3} \arctan \left (\frac {\sqrt {-c d^{2} - a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{a c d^{2} + a^{2} e^{2} + {\left (c^{2} d^{2} + a c e^{2}\right )} x^{2}}\right ) - 3 \, {\left (c d^{2} e + 2 \, a e^{3}\right )} \sqrt {a} x^{3} \log \left (-\frac {c x^{2} + 2 \, \sqrt {c x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) - 2 \, {\left (3 \, a d^{2} e x - 2 \, a d^{3} - 2 \, {\left (c d^{3} + 3 \, a d e^{2}\right )} x^{2}\right )} \sqrt {c x^{2} + a}}{12 \, a d^{4} x^{3}}, \frac {3 \, \sqrt {c d^{2} + a e^{2}} a e^{2} x^{3} \log \left (\frac {2 \, a c d e x - a c d^{2} - 2 \, a^{2} e^{2} - {\left (2 \, c^{2} d^{2} + a c e^{2}\right )} x^{2} - 2 \, \sqrt {c d^{2} + a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{e^{2} x^{2} + 2 \, d e x + d^{2}}\right ) - 3 \, {\left (c d^{2} e + 2 \, a e^{3}\right )} \sqrt {-a} x^{3} \arctan \left (\frac {\sqrt {-a}}{\sqrt {c x^{2} + a}}\right ) + {\left (3 \, a d^{2} e x - 2 \, a d^{3} - 2 \, {\left (c d^{3} + 3 \, a d e^{2}\right )} x^{2}\right )} \sqrt {c x^{2} + a}}{6 \, a d^{4} x^{3}}, -\frac {6 \, \sqrt {-c d^{2} - a e^{2}} a e^{2} x^{3} \arctan \left (\frac {\sqrt {-c d^{2} - a e^{2}} {\left (c d x - a e\right )} \sqrt {c x^{2} + a}}{a c d^{2} + a^{2} e^{2} + {\left (c^{2} d^{2} + a c e^{2}\right )} x^{2}}\right ) + 3 \, {\left (c d^{2} e + 2 \, a e^{3}\right )} \sqrt {-a} x^{3} \arctan \left (\frac {\sqrt {-a}}{\sqrt {c x^{2} + a}}\right ) - {\left (3 \, a d^{2} e x - 2 \, a d^{3} - 2 \, {\left (c d^{3} + 3 \, a d e^{2}\right )} x^{2}\right )} \sqrt {c x^{2} + a}}{6 \, a d^{4} x^{3}}\right ] \]
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\[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\int \frac {\sqrt {a + c x^{2}}}{x^{4} \left (d + e x\right )}\, dx \]
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\[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\int { \frac {\sqrt {c x^{2} + a}}{{\left (e x + d\right )} x^{4}} \,d x } \]
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Time = 0.29 (sec) , antiderivative size = 313, normalized size of antiderivative = 1.64 \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\frac {2 \, {\left (c d^{2} e^{2} + a e^{4}\right )} \arctan \left (-\frac {{\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )} e + \sqrt {c} d}{\sqrt {-c d^{2} - a e^{2}}}\right )}{\sqrt {-c d^{2} - a e^{2}} d^{4}} - \frac {{\left (c d^{2} e + 2 \, a e^{3}\right )} \arctan \left (-\frac {\sqrt {c} x - \sqrt {c x^{2} + a}}{\sqrt {-a}}\right )}{\sqrt {-a} d^{4}} - \frac {3 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )}^{5} c d e - 6 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )}^{4} c^{\frac {3}{2}} d^{2} - 6 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )}^{4} a \sqrt {c} e^{2} + 12 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )}^{2} a^{2} \sqrt {c} e^{2} - 3 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )} a^{2} c d e - 2 \, a^{2} c^{\frac {3}{2}} d^{2} - 6 \, a^{3} \sqrt {c} e^{2}}{3 \, {\left ({\left (\sqrt {c} x - \sqrt {c x^{2} + a}\right )}^{2} - a\right )}^{3} d^{3}} \]
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Timed out. \[ \int \frac {\sqrt {a+c x^2}}{x^4 (d+e x)} \, dx=\int \frac {\sqrt {c\,x^2+a}}{x^4\,\left (d+e\,x\right )} \,d x \]
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