Integrand size = 24, antiderivative size = 294 \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=-\frac {3 c \sqrt {c-a^2 c x^2} \sqrt {\text {arccosh}(a x)}}{4 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{32 a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erfi}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{32 a \sqrt {-1+a x} \sqrt {1+a x}}+\frac {c \sqrt {\frac {\pi }{2}} \sqrt {c-a^2 c x^2} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {-1+a x} \sqrt {1+a x}} \]
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Time = 0.16 (sec) , antiderivative size = 294, normalized size of antiderivative = 1.00, number of steps used = 13, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {5906, 3393, 3388, 2211, 2235, 2236} \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=-\frac {\sqrt {\pi } c \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{32 a \sqrt {a x-1} \sqrt {a x+1}}+\frac {\sqrt {\frac {\pi }{2}} c \sqrt {c-a^2 c x^2} \text {erf}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {a x-1} \sqrt {a x+1}}-\frac {\sqrt {\pi } c \sqrt {c-a^2 c x^2} \text {erfi}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{32 a \sqrt {a x-1} \sqrt {a x+1}}+\frac {\sqrt {\frac {\pi }{2}} c \sqrt {c-a^2 c x^2} \text {erfi}\left (\sqrt {2} \sqrt {\text {arccosh}(a x)}\right )}{4 a \sqrt {a x-1} \sqrt {a x+1}}-\frac {3 c \sqrt {\text {arccosh}(a x)} \sqrt {c-a^2 c x^2}}{4 a \sqrt {a x-1} \sqrt {a x+1}} \]
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Rule 2211
Rule 2235
Rule 2236
Rule 3388
Rule 3393
Rule 5906
Rubi steps \begin{align*} \text {integral}& = -\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 (c \sqrt {c-a^2 c x^2}\right ) \text {Subst}\left (\int \left (\frac {3}{8 \sqrt {x}}-\frac {\cosh (2 x)}{2 \sqrt {x}}+\frac {\cosh (4 x)}{8 \sqrt {x}}\right ) \, dx,x,\text {arccosh}(a x)\right )}{a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {3 c \sqrt {c-a^2 c x^2} \sqrt {\text {arccosh}(a x)}}{4 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 {\cosh (4 x)}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{8 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 {\cosh (2 x)}{\sqrt {x}} \, dx,x,\text {arccosh}(a x)\right )}{2 a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {3 c \sqrt {c-a^2 c x^2} \sqrt {\text {arccosh}(a x)}}{4 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 )}{16 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 )}{16 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 )}{4 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 )}{4 a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {3 c \sqrt {c-a^2 c x^2} \sqrt {\text {arccosh}(a x)}}{4 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 )}{8 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 )}{8 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^{-2 x^2} \, dx,x,\sqrt {\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 e^{2 x^2} \, dx,x,\sqrt {\text {arccosh}(a x)}\right )}{2 a \sqrt {-1+a x} \sqrt {1+a x}} \\ & = -\frac {3 c \sqrt {c-a^2 c x^2} \sqrt {\text {arccosh}(a x)}}{4 a \sqrt {-1+a x} \sqrt {1+a x}}-\frac {c \sqrt {\pi } \sqrt {c-a^2 c x^2} \text {erf}\left (2 \sqrt {\text {arccosh}(a x)}\right )}{32 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 )}{4 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 )}{32 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 )}{4 a \sqrt {-1+a x} \sqrt {1+a x}} \\ \end{align*}
Time = 0.24 (sec) , antiderivative size = 153, normalized size of antiderivative = 0.52 \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=-\frac {c \sqrt {c-a^2 c x^2} \left (\sqrt {-\text {arccosh}(a x)} \Gamma \left (\frac {1}{2},-4 \text {arccosh}(a x)\right )-4 \sqrt {2} \sqrt {-\text {arccosh}(a x)} \Gamma \left (\frac {1}{2},-2 \text {arccosh}(a x)\right )+\sqrt {\text {arccosh}(a x)} \left (24 \sqrt {\text {arccosh}(a x)}+4 \sqrt {2} \Gamma \left (\frac {1}{2},2 \text {arccosh}(a x)\right )-\Gamma \left (\frac {1}{2},4 \text {arccosh}(a x)\right )\right )\right )}{32 a \sqrt {\frac {-1+a x}{1+a x}} (1+a x) \sqrt {\text {arccosh}(a x)}} \]
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\[\int \frac {\left (-a^{2} c \,x^{2}+c \right )^{\frac {3}{2}}}{\sqrt {\operatorname {arccosh}\left (a x \right )}}d x\]
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Exception generated. \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=\int \frac {\left (- c \left (a x - 1\right ) \left (a x + 1\right )\right )^{\frac {3}{2}}}{\sqrt {\operatorname {acosh}{\left (a x \right )}}}\, dx \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=\int { \frac {{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}}{\sqrt {\operatorname {arcosh}\left (a x\right )}} \,d x } \]
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\[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=\int { \frac {{\left (-a^{2} c x^{2} + c\right )}^{\frac {3}{2}}}{\sqrt {\operatorname {arcosh}\left (a x\right )}} \,d x } \]
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Timed out. \[ \int \frac {\left (c-a^2 c x^2\right )^{3/2}}{\sqrt {\text {arccosh}(a x)}} \, dx=\int \frac {{\left (c-a^2\,c\,x^2\right )}^{3/2}}{\sqrt {\mathrm {acosh}\left (a\,x\right )}} \,d x \]
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