Optimal. Leaf size=64 \[ -\frac{4 i \text{EllipticF}\left (\frac{1}{2} i (a+b x),2\right )}{15 b^2}+\frac{4 \sinh (a+b x)}{15 b^2 \cosh ^{\frac{3}{2}}(a+b x)}-\frac{2 x}{5 b \cosh ^{\frac{5}{2}}(a+b x)} \]
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Rubi [A] time = 0.042516, antiderivative size = 64, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {5373, 2636, 2641} \[ -\frac{4 i F\left (\left .\frac{1}{2} i (a+b x)\right |2\right )}{15 b^2}+\frac{4 \sinh (a+b x)}{15 b^2 \cosh ^{\frac{3}{2}}(a+b x)}-\frac{2 x}{5 b \cosh ^{\frac{5}{2}}(a+b x)} \]
Antiderivative was successfully verified.
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Rule 5373
Rule 2636
Rule 2641
Rubi steps
\begin{align*} \int \frac{x \sinh (a+b x)}{\cosh ^{\frac{7}{2}}(a+b x)} \, dx &=-\frac{2 x}{5 b \cosh ^{\frac{5}{2}}(a+b x)}+\frac{2 \int \frac{1}{\cosh ^{\frac{5}{2}}(a+b x)} \, dx}{5 b}\\ &=-\frac{2 x}{5 b \cosh ^{\frac{5}{2}}(a+b x)}+\frac{4 \sinh (a+b x)}{15 b^2 \cosh ^{\frac{3}{2}}(a+b x)}+\frac{2 \int \frac{1}{\sqrt{\cosh (a+b x)}} \, dx}{15 b}\\ &=-\frac{2 x}{5 b \cosh ^{\frac{5}{2}}(a+b x)}-\frac{4 i F\left (\left .\frac{1}{2} i (a+b x)\right |2\right )}{15 b^2}+\frac{4 \sinh (a+b x)}{15 b^2 \cosh ^{\frac{3}{2}}(a+b x)}\\ \end{align*}
Mathematica [A] time = 0.234105, size = 57, normalized size = 0.89 \[ \frac{2 \left (-2 i \cosh ^{\frac{5}{2}}(a+b x) \text{EllipticF}\left (\frac{1}{2} i (a+b x),2\right )+\sinh (2 (a+b x))-3 b x\right )}{15 b^2 \cosh ^{\frac{5}{2}}(a+b x)} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.026, size = 0, normalized size = 0. \begin{align*} \int{x\sinh \left ( bx+a \right ) \left ( \cosh \left ( bx+a \right ) \right ) ^{-{\frac{7}{2}}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x \sinh \left (b x + a\right )}{\cosh \left (b x + a\right )^{\frac{7}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: UnboundLocalError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x \sinh \left (b x + a\right )}{\cosh \left (b x + a\right )^{\frac{7}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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