Integrand size = 18, antiderivative size = 98 \[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)}-\frac {4 \cosh (a+b x)}{9 b^2 \sqrt {\text {csch}(a+b x)}}-\frac {4 i \sqrt {\text {csch}(a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} \left (i a-\frac {\pi }{2}+i b x\right ),2\right ) \sqrt {i \sinh (a+b x)}}{9 b^2} \]
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Time = 0.05 (sec) , antiderivative size = 98, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {5553, 3854, 3856, 2720} \[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=-\frac {4 \cosh (a+b x)}{9 b^2 \sqrt {\text {csch}(a+b x)}}-\frac {4 i \sqrt {i \sinh (a+b x)} \sqrt {\text {csch}(a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} \left (i a+i b x-\frac {\pi }{2}\right ),2\right )}{9 b^2}+\frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)} \]
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Rule 2720
Rule 3854
Rule 3856
Rule 5553
Rubi steps \begin{align*} \text {integral}& = \frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)}-\frac {2 \int \frac {1}{\text {csch}^{\frac {3}{2}}(a+b x)} \, dx}{3 b} \\ & = \frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)}-\frac {4 \cosh (a+b x)}{9 b^2 \sqrt {\text {csch}(a+b x)}}+\frac {2 \int \sqrt {\text {csch}(a+b x)} \, dx}{9 b} \\ & = \frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)}-\frac {4 \cosh (a+b x)}{9 b^2 \sqrt {\text {csch}(a+b x)}}+\frac {\left (2 \sqrt {\text {csch}(a+b x)} \sqrt {i \sinh (a+b x)}\right ) \int \frac {1}{\sqrt {i \sinh (a+b x)}} \, dx}{9 b} \\ & = \frac {2 x}{3 b \text {csch}^{\frac {3}{2}}(a+b x)}-\frac {4 \cosh (a+b x)}{9 b^2 \sqrt {\text {csch}(a+b x)}}-\frac {4 i \sqrt {\text {csch}(a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} \left (i a-\frac {\pi }{2}+i b x\right ),2\right ) \sqrt {i \sinh (a+b x)}}{9 b^2} \\ \end{align*}
Time = 0.46 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.68 \[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\frac {6 b x-4 \coth (a+b x)-\frac {4 i \operatorname {EllipticF}\left (\frac {1}{4} (-2 i a+\pi -2 i b x),2\right )}{(i \sinh (a+b x))^{3/2}}}{9 b^2 \text {csch}^{\frac {3}{2}}(a+b x)} \]
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\[\int \frac {x \cosh \left (b x +a \right )}{\sqrt {\operatorname {csch}\left (b x +a \right )}}d x\]
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Exception generated. \[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\int \frac {x \cosh {\left (a + b x \right )}}{\sqrt {\operatorname {csch}{\left (a + b x \right )}}}\, dx \]
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\[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\int { \frac {x \cosh \left (b x + a\right )}{\sqrt {\operatorname {csch}\left (b x + a\right )}} \,d x } \]
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\[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\int { \frac {x \cosh \left (b x + a\right )}{\sqrt {\operatorname {csch}\left (b x + a\right )}} \,d x } \]
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Timed out. \[ \int \frac {x \cosh (a+b x)}{\sqrt {\text {csch}(a+b x)}} \, dx=\int \frac {x\,\mathrm {cosh}\left (a+b\,x\right )}{\sqrt {\frac {1}{\mathrm {sinh}\left (a+b\,x\right )}}} \,d x \]
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