Integrand size = 22, antiderivative size = 241 \[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \operatorname {PolyLog}\left (3,e^{2 \text {arccosh}(a x)}\right )}{2 a c \sqrt {c-a^2 c x^2}} \]
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Time = 0.15 (sec) , antiderivative size = 241, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.318, Rules used = {5899, 5913, 3797, 2221, 2611, 2320, 6724} \[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=-\frac {3 \sqrt {a x-1} \sqrt {a x+1} \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {3 \sqrt {a x-1} \sqrt {a x+1} \operatorname {PolyLog}\left (3,e^{2 \text {arccosh}(a x)}\right )}{2 a c \sqrt {c-a^2 c x^2}}+\frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {a x-1} \sqrt {a x+1} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {a x-1} \sqrt {a x+1} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}} \]
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Rule 2221
Rule 2320
Rule 2611
Rule 3797
Rule 5899
Rule 5913
Rule 6724
Rubi steps \begin{align*} \text {integral}& = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\left (3 a \sqrt {-1+a x} \sqrt {1+a x}\right ) \int \frac {x \text {arccosh}(a x)^2}{1-a^2 x^2} \, dx}{c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}-\frac {\left (3 \sqrt {-1+a x} \sqrt {1+a x}\right ) \text {Subst}\left (\int x^2 \coth (x) \, dx,x,\text {arccosh}(a x)\right )}{a c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}+\frac {\left (6 \sqrt {-1+a x} \sqrt {1+a x}\right ) \text {Subst}\left (\int \frac {e^{2 x} x^2}{1-e^{2 x}} \, dx,x,\text {arccosh}(a x)\right )}{a c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {\left (6 \sqrt {-1+a x} \sqrt {1+a x}\right ) \text {Subst}\left (\int x \log \left (1-e^{2 x}\right ) \, dx,x,\text {arccosh}(a x)\right )}{a c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {\left (3 \sqrt {-1+a x} \sqrt {1+a x}\right ) \text {Subst}\left (\int \operatorname {PolyLog}\left (2,e^{2 x}\right ) \, dx,x,\text {arccosh}(a x)\right )}{a c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {\left (3 \sqrt {-1+a x} \sqrt {1+a x}\right ) \text {Subst}\left (\int \frac {\operatorname {PolyLog}(2,x)}{x} \, dx,x,e^{2 \text {arccosh}(a x)}\right )}{2 a c \sqrt {c-a^2 c x^2}} \\ & = \frac {x \text {arccosh}(a x)^3}{c \sqrt {c-a^2 c x^2}}+\frac {\sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^3}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x)^2 \log \left (1-e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}-\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{2 \text {arccosh}(a x)}\right )}{a c \sqrt {c-a^2 c x^2}}+\frac {3 \sqrt {-1+a x} \sqrt {1+a x} \operatorname {PolyLog}\left (3,e^{2 \text {arccosh}(a x)}\right )}{2 a c \sqrt {c-a^2 c x^2}} \\ \end{align*}
Time = 0.22 (sec) , antiderivative size = 162, normalized size of antiderivative = 0.67 \[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\frac {\sqrt {-1+a x} \sqrt {1+a x} \left (\text {arccosh}(a x)^3+\frac {a x \text {arccosh}(a x)^3}{\sqrt {-1+a x} \sqrt {1+a x}}-3 \text {arccosh}(a x)^2 \log \left (1-e^{\text {arccosh}(a x)}\right )-3 \text {arccosh}(a x)^2 \log \left (1+e^{\text {arccosh}(a x)}\right )-6 \text {arccosh}(a x) \operatorname {PolyLog}\left (2,-e^{\text {arccosh}(a x)}\right )-6 \text {arccosh}(a x) \operatorname {PolyLog}\left (2,e^{\text {arccosh}(a x)}\right )+6 \operatorname {PolyLog}\left (3,-e^{\text {arccosh}(a x)}\right )+6 \operatorname {PolyLog}\left (3,e^{\text {arccosh}(a x)}\right )\right )}{a c \sqrt {c-a^2 c x^2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(547\) vs. \(2(252)=504\).
Time = 1.14 (sec) , antiderivative size = 548, normalized size of antiderivative = 2.27
method | result | size |
default | \(-\frac {\sqrt {-c \left (a^{2} x^{2}-1\right )}\, \left (-\sqrt {a x -1}\, \sqrt {a x +1}+a x \right ) \operatorname {arccosh}\left (a x \right )^{3}}{c^{2} a \left (a^{2} x^{2}-1\right )}-\frac {2 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {arccosh}\left (a x \right )^{3}}{c^{2} a \left (a^{2} x^{2}-1\right )}+\frac {3 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {arccosh}\left (a x \right )^{2} \ln \left (1+a x +\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}+\frac {6 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {arccosh}\left (a x \right ) \operatorname {polylog}\left (2, -a x -\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}-\frac {6 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {polylog}\left (3, -a x -\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}+\frac {3 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {arccosh}\left (a x \right )^{2} \ln \left (1-a x -\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}+\frac {6 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {arccosh}\left (a x \right ) \operatorname {polylog}\left (2, a x +\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}-\frac {6 \sqrt {a x +1}\, \sqrt {a x -1}\, \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \operatorname {polylog}\left (3, a x +\sqrt {a x -1}\, \sqrt {a x +1}\right )}{c^{2} a \left (a^{2} x^{2}-1\right )}\) | \(548\) |
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\[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\int { \frac {\operatorname {arcosh}\left (a x\right )^{3}}{{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\int \frac {\operatorname {acosh}^{3}{\left (a x \right )}}{\left (- c \left (a x - 1\right ) \left (a x + 1\right )\right )^{\frac {3}{2}}}\, dx \]
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\[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\int { \frac {\operatorname {arcosh}\left (a x\right )^{3}}{{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\int { \frac {\operatorname {arcosh}\left (a x\right )^{3}}{{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\text {arccosh}(a x)^3}{\left (c-a^2 c x^2\right )^{3/2}} \, dx=\int \frac {{\mathrm {acosh}\left (a\,x\right )}^3}{{\left (c-a^2\,c\,x^2\right )}^{3/2}} \,d x \]
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