Integrand size = 24, antiderivative size = 286 \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=-\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}+\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erfi}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \]
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Time = 0.19 (sec) , antiderivative size = 286, normalized size of antiderivative = 1.00, number of steps used = 15, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {5904, 5912, 5952, 5556, 3389, 2211, 2235, 2236} \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\frac {\sqrt {\pi } c \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {a x-1} \sqrt {a x+1}}-\frac {\sqrt {\frac {\pi }{2}} c \sqrt {c-a^2 c x^2} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {a x-1} \sqrt {a x+1}}-\frac {\sqrt {\pi } c \sqrt {c-a^2 c x^2} \text {erfi}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {a x-1} \sqrt {a x+1}}+\frac {\sqrt {\frac {\pi }{2}} c \sqrt {c-a^2 c x^2} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {a x-1} \sqrt {a x+1}}-\frac {2 \sqrt {a x-1} \sqrt {a x+1} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}} \]
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Rule 2211
Rule 2235
Rule 2236
Rule 3389
Rule 5556
Rule 5904
Rule 5912
Rule 5952
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}-\frac {\left (8 a c \sqrt {c-a^2 c x^2}\right ) \int \frac {x (-1+a x) (1+a x)}{\sqrt {\text {arccosh}(a x)}} \, dx}{\sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}-\frac {\left (8 a c \sqrt {c-a^2 c x^2}\right ) \int \frac {x \left (-1+a^2 x^2\right )}{\sqrt {\text {arccosh}(a x)}} \, dx}{\sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}-\frac {\left (8 c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {\cosh (x) \sinh ^3(x)}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}-\frac {\left (8 c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \left (-\frac {\sinh (2 x)}{4 \sqrt {x}}+\frac {\sinh (4 x)}{8 \sqrt {x}}\right ) \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}-\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {\sinh (4 x)}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {\left (2 c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {\sinh (2 x)}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}+\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {e^{-4 x}}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{2 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {e^{4 x}}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{2 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {e^{-2 x}}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \frac {e^{2 x}}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}+\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int e^{-4 x^2} \, dx,x,\sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {\left (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int e^{4 x^2} \, dx,x,\sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {\left (2 c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int e^{-2 x^2} \, dx,x,\sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {\left (2 c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int e^{2 x^2} \, dx,x,\sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {2 \sqrt {-1+a x} \sqrt {1+a x} \left (c-a^2 c x^2\right )^{3/2}}{a \sqrt {\text {arccosh}(a x)}}+\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erfi}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ \end{align*}
Time = 0.45 (sec) , antiderivative size = 239, normalized size of antiderivative = 0.84 \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=-\frac {c e^{-4 \text {arccosh}(a x)} \sqrt {c-a^2 c x^2} \left (-1-14 e^{4 \text {arccosh}(a x)}-e^{8 \text {arccosh}(a x)}+16 a^2 e^{4 \text {arccosh}(a x)} x^2+4 e^{4 \text {arccosh}(a x)} \sqrt {2 \pi } \sqrt {\text {arccosh}(a x)} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )-4 e^{4 \text {arccosh}(a x)} \sqrt {2 \pi } \sqrt {\text {arccosh}(a x)} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )+2 e^{4 \text {arccosh}(a x)} \sqrt {-\text {arccosh}(a x)} \Gamma \left (\frac {1}{2},-4 \text {arccosh}(a x)\right )+2 e^{4 \text {arccosh}(a x)} \sqrt {\text {arccosh}(a x)} \Gamma \left (\frac {1}{2},4 \text {arccosh}(a x)\right )\right )}{8 a \sqrt {\frac {-1+a x}{1+a x}} (1+a x) \sqrt {\text {arccosh}(a x)}} \]
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\[\int \frac {\left (-a^{2} c \,x^{2}+c \right )^{\frac {3}{2}}}{\operatorname {arccosh}\left (a x \right )^{\frac {3}{2}}}d x\]
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Exception generated. \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\int \frac {\left (- c \left (a x - 1\right ) \left (a x + 1\right )\right )^{\frac {3}{2}}}{\operatorname {acosh}^{\frac {3}{2}}{\left (a x \right )}}\, dx \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\int { \frac {{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}}{\operatorname {arcosh}\left (a x\right )^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\int { \frac {{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}}{\operatorname {arcosh}\left (a x\right )^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\text {arccosh}(a x)^{3/2}} \, dx=\int \frac {{\left (c-a^2\,c\,x^2\right )}^{3/2}}{{\mathrm {acosh}\left (a\,x\right )}^{3/2}} \,d x \]
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