Integrand size = 23, antiderivative size = 261 \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\frac {104 \sqrt {1+\frac {1}{a x}} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {4 \sqrt {2} \sqrt {\frac {1}{x}} \sqrt {c-a c x} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )}{a^{7/2} \sqrt {1-\frac {1}{a x}}} \]
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Time = 0.20 (sec) , antiderivative size = 261, normalized size of antiderivative = 1.00, number of steps used = 9, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.304, Rules used = {6311, 6316, 100, 157, 12, 95, 212} \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=-\frac {4 \sqrt {2} \sqrt {\frac {1}{x}} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {\frac {1}{a x}+1}}\right ) \sqrt {c-a c x}}{a^{7/2} \sqrt {1-\frac {1}{a x}}}+\frac {104 \sqrt {\frac {1}{a x}+1} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 x \sqrt {\frac {1}{a x}+1} \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {2 x^3 \sqrt {\frac {1}{a x}+1} \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}+\frac {6 x^2 \sqrt {\frac {1}{a x}+1} \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}} \]
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Rule 12
Rule 95
Rule 100
Rule 157
Rule 212
Rule 6311
Rule 6316
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {c-a c x} \int e^{3 \coth ^{-1}(a x)} \sqrt {1-\frac {1}{a x}} x^{5/2} \, dx}{\sqrt {1-\frac {1}{a x}} \sqrt {x}} \\ & = -\frac {\left (\sqrt {\frac {1}{x}} \sqrt {c-a c x}\right ) \text {Subst}\left (\int \frac {\left (1+\frac {x}{a}\right )^{3/2}}{x^{9/2} \left (1-\frac {x}{a}\right )} \, dx,x,\frac {1}{x}\right )}{\sqrt {1-\frac {1}{a x}}} \\ & = \frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}+\frac {\left (2 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\right ) \text {Subst}\left (\int \frac {-\frac {15}{2 a}-\frac {13 x}{2 a^2}}{x^{7/2} \left (1-\frac {x}{a}\right ) \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{7 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {\left (4 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\right ) \text {Subst}\left (\int \frac {\frac {20}{a^2}+\frac {15 x}{a^3}}{x^{5/2} \left (1-\frac {x}{a}\right ) \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{35 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}+\frac {\left (8 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\right ) \text {Subst}\left (\int \frac {-\frac {65}{2 a^3}-\frac {20 x}{a^4}}{x^{3/2} \left (1-\frac {x}{a}\right ) \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{105 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {104 \sqrt {1+\frac {1}{a x}} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {\left (16 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\right ) \text {Subst}\left (\int \frac {105}{4 a^4 \sqrt {x} \left (1-\frac {x}{a}\right ) \sqrt {1+\frac {x}{a}}} \, dx,x,\frac {1}{x}\right )}{105 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {104 \sqrt {1+\frac {1}{a x}} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {\left (4 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\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 )}{a^4 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {104 \sqrt {1+\frac {1}{a x}} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {\left (8 \sqrt {\frac {1}{x}} \sqrt {c-a c x}\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 )}{a^4 \sqrt {1-\frac {1}{a x}}} \\ & = \frac {104 \sqrt {1+\frac {1}{a x}} \sqrt {c-a c x}}{21 a^3 \sqrt {1-\frac {1}{a x}}}+\frac {32 \sqrt {1+\frac {1}{a x}} x \sqrt {c-a c x}}{21 a^2 \sqrt {1-\frac {1}{a x}}}+\frac {6 \sqrt {1+\frac {1}{a x}} x^2 \sqrt {c-a c x}}{7 a \sqrt {1-\frac {1}{a x}}}+\frac {2 \sqrt {1+\frac {1}{a x}} x^3 \sqrt {c-a c x}}{7 \sqrt {1-\frac {1}{a x}}}-\frac {4 \sqrt {2} \sqrt {\frac {1}{x}} \sqrt {c-a c x} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )}{a^{7/2} \sqrt {1-\frac {1}{a x}}} \\ \end{align*}
Time = 0.10 (sec) , antiderivative size = 122, normalized size of antiderivative = 0.47 \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\frac {2 \sqrt {c-a c x} \left (\sqrt {a} \sqrt {1+\frac {1}{a x}} \left (52+16 a x+9 a^2 x^2+3 a^3 x^3\right )-42 \sqrt {2} \sqrt {\frac {1}{x}} \text {arctanh}\left (\frac {\sqrt {2} \sqrt {\frac {1}{x}}}{\sqrt {a} \sqrt {1+\frac {1}{a x}}}\right )\right )}{21 a^{7/2} \sqrt {1-\frac {1}{a x}}} \]
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Time = 0.46 (sec) , antiderivative size = 138, normalized size of antiderivative = 0.53
method | result | size |
risch | \(-\frac {2 \left (3 a^{3} x^{3}+9 a^{2} x^{2}+16 a x +52\right ) c \left (a x -1\right )}{21 a^{3} \sqrt {\frac {a x -1}{a x +1}}\, \sqrt {-c \left (a x -1\right )}}-\frac {4 \sqrt {2}\, \sqrt {c}\, \arctan \left (\frac {\sqrt {-a c x -c}\, \sqrt {2}}{2 \sqrt {c}}\right ) \sqrt {-c \left (a x +1\right )}\, \left (a x -1\right )}{a^{3} \left (a x +1\right ) \sqrt {\frac {a x -1}{a x +1}}\, \sqrt {-c \left (a x -1\right )}}\) | \(138\) |
default | \(-\frac {2 \left (a x -1\right ) \sqrt {-c \left (a x -1\right )}\, \left (-3 a^{3} x^{3} \sqrt {-c \left (a x +1\right )}-9 a^{2} x^{2} \sqrt {-c \left (a x +1\right )}+42 \sqrt {c}\, \sqrt {2}\, \arctan \left (\frac {\sqrt {-c \left (a x +1\right )}\, \sqrt {2}}{2 \sqrt {c}}\right )-16 a x \sqrt {-c \left (a x +1\right )}-52 \sqrt {-c \left (a x +1\right )}\right )}{21 \left (\frac {a x -1}{a x +1}\right )^{\frac {3}{2}} \left (a x +1\right ) \sqrt {-c \left (a x +1\right )}\, a^{3}}\) | \(143\) |
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Time = 0.27 (sec) , antiderivative size = 288, normalized size of antiderivative = 1.10 \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\left [\frac {2 \, {\left (21 \, \sqrt {2} {\left (a x - 1\right )} \sqrt {-c} \log \left (-\frac {a^{2} c x^{2} + 2 \, a c x + 2 \, \sqrt {2} \sqrt {-a c x + c} {\left (a x + 1\right )} \sqrt {-c} \sqrt {\frac {a x - 1}{a x + 1}} - 3 \, c}{a^{2} x^{2} - 2 \, a x + 1}\right ) + {\left (3 \, a^{4} x^{4} + 12 \, a^{3} x^{3} + 25 \, a^{2} x^{2} + 68 \, a x + 52\right )} \sqrt {-a c x + c} \sqrt {\frac {a x - 1}{a x + 1}}\right )}}{21 \, {\left (a^{4} x - a^{3}\right )}}, -\frac {2 \, {\left (42 \, \sqrt {2} {\left (a x - 1\right )} \sqrt {c} \arctan \left (\frac {\sqrt {2} \sqrt {-a c x + c} \sqrt {c} \sqrt {\frac {a x - 1}{a x + 1}}}{a c x - c}\right ) - {\left (3 \, a^{4} x^{4} + 12 \, a^{3} x^{3} + 25 \, a^{2} x^{2} + 68 \, a x + 52\right )} \sqrt {-a c x + c} \sqrt {\frac {a x - 1}{a x + 1}}\right )}}{21 \, {\left (a^{4} x - a^{3}\right )}}\right ] \]
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\[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\int \frac {x^{2} \sqrt {- c \left (a x - 1\right )}}{\left (\frac {a x - 1}{a x + 1}\right )^{\frac {3}{2}}}\, dx \]
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\[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\int { \frac {\sqrt {-a c x + c} x^{2}}{\left (\frac {a x - 1}{a x + 1}\right )^{\frac {3}{2}}} \,d x } \]
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Time = 0.29 (sec) , antiderivative size = 145, normalized size of antiderivative = 0.56 \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=-\frac {2 \, c^{2} {\left (\frac {2 \, \sqrt {2} {\left (21 \, \sqrt {c} \arctan \left (\frac {\sqrt {-c}}{\sqrt {c}}\right ) - 40 \, \sqrt {-c}\right )}}{a^{2} c} - \frac {42 \, \sqrt {2} c^{\frac {7}{2}} \arctan \left (\frac {\sqrt {2} \sqrt {-a c x - c}}{2 \, \sqrt {c}}\right ) - 3 \, {\left (a c x + c\right )}^{3} \sqrt {-a c x - c} + 7 \, {\left (-a c x - c\right )}^{\frac {3}{2}} c^{2} - 42 \, \sqrt {-a c x - c} c^{3}}{a^{2} c^{4}}\right )}}{21 \, a {\left | c \right |} \mathrm {sgn}\left (a x + 1\right )} \]
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Timed out. \[ \int e^{3 \coth ^{-1}(a x)} x^2 \sqrt {c-a c x} \, dx=\int \frac {x^2\,\sqrt {c-a\,c\,x}}{{\left (\frac {a\,x-1}{a\,x+1}\right )}^{3/2}} \,d x \]
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