Optimal. Leaf size=28 \[ \frac {\cosh ^2(a+b x)}{2 b}-\frac {\log (\cosh (a+b x))}{b} \]
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Rubi [A] time = 0.03, antiderivative size = 28, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {2590, 14} \[ \frac {\cosh ^2(a+b x)}{2 b}-\frac {\log (\cosh (a+b x))}{b} \]
Antiderivative was successfully verified.
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Rule 14
Rule 2590
Rubi steps
\begin {align*} \int \sinh ^2(a+b x) \tanh (a+b x) \, dx &=-\frac {\operatorname {Subst}\left (\int \frac {1-x^2}{x} \, dx,x,\cosh (a+b x)\right )}{b}\\ &=-\frac {\operatorname {Subst}\left (\int \left (\frac {1}{x}-x\right ) \, dx,x,\cosh (a+b x)\right )}{b}\\ &=\frac {\cosh ^2(a+b x)}{2 b}-\frac {\log (\cosh (a+b x))}{b}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 25, normalized size = 0.89 \[ -\frac {\log (\cosh (a+b x))-\frac {1}{2} \cosh ^2(a+b x)}{b} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.45, size = 197, normalized size = 7.04 \[ \frac {8 \, b x \cosh \left (b x + a\right )^{2} + \cosh \left (b x + a\right )^{4} + 4 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{3} + \sinh \left (b x + a\right )^{4} + 2 \, {\left (4 \, b x + 3 \, \cosh \left (b x + a\right )^{2}\right )} \sinh \left (b x + a\right )^{2} - 8 \, {\left (\cosh \left (b x + a\right )^{2} + 2 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right ) + \sinh \left (b x + a\right )^{2}\right )} \log \left (\frac {2 \, \cosh \left (b x + a\right )}{\cosh \left (b x + a\right ) - \sinh \left (b x + a\right )}\right ) + 4 \, {\left (4 \, b x \cosh \left (b x + a\right ) + \cosh \left (b x + a\right )^{3}\right )} \sinh \left (b x + a\right ) + 1}{8 \, {\left (b \cosh \left (b x + a\right )^{2} + 2 \, b \cosh \left (b x + a\right ) \sinh \left (b x + a\right ) + b \sinh \left (b x + a\right )^{2}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 0.13, size = 57, normalized size = 2.04 \[ \frac {8 \, b x - {\left (4 \, e^{\left (2 \, b x + 2 \, a\right )} - 1\right )} e^{\left (-2 \, b x - 2 \, a\right )} + e^{\left (2 \, b x + 2 \, a\right )} - 8 \, \log \left (e^{\left (2 \, b x + 2 \, a\right )} + 1\right )}{8 \, b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.14, size = 27, normalized size = 0.96 \[ \frac {\sinh ^{2}\left (b x +a \right )}{2 b}-\frac {\ln \left (\cosh \left (b x +a \right )\right )}{b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [B] time = 0.58, size = 56, normalized size = 2.00 \[ -\frac {b x + a}{b} + \frac {e^{\left (2 \, b x + 2 \, a\right )}}{8 \, b} + \frac {e^{\left (-2 \, b x - 2 \, a\right )}}{8 \, b} - \frac {\log \left (e^{\left (-2 \, b x - 2 \, a\right )} + 1\right )}{b} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.08, size = 48, normalized size = 1.71 \[ x-\frac {\ln \left ({\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}+1\right )}{b}+\frac {{\mathrm {e}}^{-2\,a-2\,b\,x}}{8\,b}+\frac {{\mathrm {e}}^{2\,a+2\,b\,x}}{8\,b} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \sinh ^{2}{\left (a + b x \right )} \tanh {\left (a + b x \right )}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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