Integrand size = 20, antiderivative size = 193 \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=-\frac {a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^2}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}}+\frac {3 a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^3}{16 \left (a-\frac {1}{x}\right ) (c-a c x)^{7/2}}-\frac {3 a^{5/2} \left (1-\frac {1}{a x}\right )^{7/2} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )}{16 \sqrt {2} \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \]
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Time = 0.15 (sec) , antiderivative size = 193, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {6311, 6316, 96, 95, 212} \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=-\frac {3 a^{5/2} \left (1-\frac {1}{a x}\right )^{7/2} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {\frac {1}{a x}+1}}\right )}{16 \sqrt {2} \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}}+\frac {3 a^3 x^3 \sqrt {\frac {1}{a x}+1} \left (1-\frac {1}{a x}\right )^{7/2}}{16 \left (a-\frac {1}{x}\right ) (c-a c x)^{7/2}}-\frac {a^3 x^2 \sqrt {\frac {1}{a x}+1} \left (1-\frac {1}{a x}\right )^{7/2}}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}} \]
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Rule 95
Rule 96
Rule 212
Rule 6311
Rule 6316
Rubi steps \begin{align*} \text {integral}& = \frac {\left (\left (1-\frac {1}{a x}\right )^{7/2} x^{7/2}\right ) \int \frac {e^{-\coth ^{-1}(a x)}}{\left (1-\frac {1}{a x}\right )^{7/2} x^{7/2}} \, dx}{(c-a c x)^{7/2}} \\ & = -\frac {\left (1-\frac {1}{a x}\right )^{7/2} \text {Subst}\left (\int \frac {x^{3/2}}{\left (1-\frac {x}{a}\right )^3 \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{\left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \\ & = -\frac {a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^2}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}}+\frac {\left (3 a \left (1-\frac {1}{a x}\right )^{7/2}\right ) \text {Subst}\left (\int \frac {\sqrt {x}}{\left (1-\frac {x}{a}\right )^2 \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{8 \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \\ & = -\frac {a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^2}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}}+\frac {3 a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^3}{16 \left (a-\frac {1}{x}\right ) (c-a c x)^{7/2}}-\frac {\left (3 a^2 \left (1-\frac {1}{a x}\right )^{7/2}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {x} \left (1-\frac {x}{a}\right ) \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{32 \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \\ & = -\frac {a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^2}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}}+\frac {3 a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^3}{16 \left (a-\frac {1}{x}\right ) (c-a c x)^{7/2}}-\frac {\left (3 a^2 \left (1-\frac {1}{a x}\right )^{7/2}\right ) \text {Subst}\left (\int \frac {1}{1-\frac {2 x^2}{a}} \, dx,x,\frac {\sqrt {\frac {1}{x}}}{\sqrt {1+\frac {1}{a x}}}\right )}{16 \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \\ & = -\frac {a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^2}{4 \left (a-\frac {1}{x}\right )^2 (c-a c x)^{7/2}}+\frac {3 a^3 \left (1-\frac {1}{a x}\right )^{7/2} \sqrt {1+\frac {1}{a x}} x^3}{16 \left (a-\frac {1}{x}\right ) (c-a c x)^{7/2}}-\frac {3 a^{5/2} \left (1-\frac {1}{a x}\right )^{7/2} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )}{16 \sqrt {2} \left (\frac {1}{x}\right )^{7/2} (c-a c x)^{7/2}} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 125, normalized size of antiderivative = 0.65 \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\frac {\sqrt {1-\frac {1}{a x}} x \left (2 \sqrt {a} \sqrt {1+\frac {1}{a x}} (7-3 a x)+3 \sqrt {2} \sqrt {\frac {1}{x}} (-1+a x)^2 \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )\right )}{32 \sqrt {a} c^3 (-1+a x)^2 \sqrt {c-a c x}} \]
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Time = 0.44 (sec) , antiderivative size = 172, normalized size of antiderivative = 0.89
method | result | size |
default | \(\frac {\sqrt {\frac {a x -1}{a x +1}}\, \left (a x +1\right ) \sqrt {-c \left (a x -1\right )}\, \left (-3 \sqrt {2}\, \arctan \left (\frac {\sqrt {-c \left (a x +1\right )}\, \sqrt {2}}{2 \sqrt {c}}\right ) a^{2} c \,x^{2}+6 \sqrt {2}\, \arctan \left (\frac {\sqrt {-c \left (a x +1\right )}\, \sqrt {2}}{2 \sqrt {c}}\right ) a c x +6 a x \sqrt {c}\, \sqrt {-c \left (a x +1\right )}-3 \sqrt {2}\, \arctan \left (\frac {\sqrt {-c \left (a x +1\right )}\, \sqrt {2}}{2 \sqrt {c}}\right ) c -14 \sqrt {-c \left (a x +1\right )}\, \sqrt {c}\right )}{32 c^{\frac {9}{2}} \left (a x -1\right )^{3} \sqrt {-c \left (a x +1\right )}\, a}\) | \(172\) |
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Time = 0.26 (sec) , antiderivative size = 341, normalized size of antiderivative = 1.77 \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\left [-\frac {3 \, \sqrt {2} {\left (a^{3} x^{3} - 3 \, a^{2} x^{2} + 3 \, a x - 1\right )} \sqrt {-c} \log \left (-\frac {a^{2} c x^{2} + 2 \, a c x - 2 \, \sqrt {2} \sqrt {-a c x + c} {\left (a x + 1\right )} \sqrt {-c} \sqrt {\frac {a x - 1}{a x + 1}} - 3 \, c}{a^{2} x^{2} - 2 \, a x + 1}\right ) - 4 \, {\left (3 \, a^{2} x^{2} - 4 \, a x - 7\right )} \sqrt {-a c x + c} \sqrt {\frac {a x - 1}{a x + 1}}}{64 \, {\left (a^{4} c^{4} x^{3} - 3 \, a^{3} c^{4} x^{2} + 3 \, a^{2} c^{4} x - a c^{4}\right )}}, -\frac {3 \, \sqrt {2} {\left (a^{3} x^{3} - 3 \, a^{2} x^{2} + 3 \, a x - 1\right )} \sqrt {c} \arctan \left (\frac {\sqrt {2} \sqrt {-a c x + c} \sqrt {c} \sqrt {\frac {a x - 1}{a x + 1}}}{a c x - c}\right ) - 2 \, {\left (3 \, a^{2} x^{2} - 4 \, a x - 7\right )} \sqrt {-a c x + c} \sqrt {\frac {a x - 1}{a x + 1}}}{32 \, {\left (a^{4} c^{4} x^{3} - 3 \, a^{3} c^{4} x^{2} + 3 \, a^{2} c^{4} x - a c^{4}\right )}}\right ] \]
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Timed out. \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\text {Timed out} \]
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\[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\int { \frac {\sqrt {\frac {a x - 1}{a x + 1}}}{{\left (-a c x + c\right )}^{\frac {7}{2}}} \,d x } \]
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Time = 0.30 (sec) , antiderivative size = 88, normalized size of antiderivative = 0.46 \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\frac {{\left (\frac {3 \, \sqrt {2} \arctan \left (\frac {\sqrt {2} \sqrt {-a c x - c}}{2 \, \sqrt {c}}\right )}{c^{\frac {5}{2}}} + \frac {2 \, {\left (3 \, {\left (-a c x - c\right )}^{\frac {3}{2}} + 10 \, \sqrt {-a c x - c} c\right )}}{{\left (a c x - c\right )}^{2} c^{2}}\right )} {\left | c \right |} \mathrm {sgn}\left (a x + 1\right )}{32 \, a c^{2}} \]
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Timed out. \[ \int \frac {e^{-\coth ^{-1}(a x)}}{(c-a c x)^{7/2}} \, dx=\int \frac {\sqrt {\frac {a\,x-1}{a\,x+1}}}{{\left (c-a\,c\,x\right )}^{7/2}} \,d x \]
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