Optimal. Leaf size=77 \[ \frac{\tan ^{-1}\left (\frac{\sqrt{a} \sinh (c+d x)}{\sqrt{2} \sqrt{a \cosh (c+d x)+a}}\right )}{2 \sqrt{2} a^{3/2} d}+\frac{\sinh (c+d x)}{2 d (a \cosh (c+d x)+a)^{3/2}} \]
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Rubi [A] time = 0.0414038, antiderivative size = 77, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.214, Rules used = {2650, 2649, 206} \[ \frac{\tan ^{-1}\left (\frac{\sqrt{a} \sinh (c+d x)}{\sqrt{2} \sqrt{a \cosh (c+d x)+a}}\right )}{2 \sqrt{2} a^{3/2} d}+\frac{\sinh (c+d x)}{2 d (a \cosh (c+d x)+a)^{3/2}} \]
Antiderivative was successfully verified.
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Rule 2650
Rule 2649
Rule 206
Rubi steps
\begin{align*} \int \frac{1}{(a+a \cosh (c+d x))^{3/2}} \, dx &=\frac{\sinh (c+d x)}{2 d (a+a \cosh (c+d x))^{3/2}}+\frac{\int \frac{1}{\sqrt{a+a \cosh (c+d x)}} \, dx}{4 a}\\ &=\frac{\sinh (c+d x)}{2 d (a+a \cosh (c+d x))^{3/2}}+\frac{i \operatorname{Subst}\left (\int \frac{1}{2 a-x^2} \, dx,x,-\frac{i a \sinh (c+d x)}{\sqrt{a+a \cosh (c+d x)}}\right )}{2 a d}\\ &=\frac{\tan ^{-1}\left (\frac{\sqrt{a} \sinh (c+d x)}{\sqrt{2} \sqrt{a+a \cosh (c+d x)}}\right )}{2 \sqrt{2} a^{3/2} d}+\frac{\sinh (c+d x)}{2 d (a+a \cosh (c+d x))^{3/2}}\\ \end{align*}
Mathematica [A] time = 0.0813707, size = 63, normalized size = 0.82 \[ \frac{\cosh ^2\left (\frac{1}{2} (c+d x)\right ) \left (\tanh \left (\frac{1}{2} (c+d x)\right )+\cosh \left (\frac{1}{2} (c+d x)\right ) \tan ^{-1}\left (\sinh \left (\frac{1}{2} (c+d x)\right )\right )\right )}{d (a (\cosh (c+d x)+1))^{3/2}} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.045, size = 144, normalized size = 1.9 \begin{align*} -{\frac{\sqrt{2}}{4\,{a}^{2}d}\sqrt{ \left ( \sinh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}a} \left ( \ln \left ( 2\,{\frac{\sqrt{ \left ( \sinh \left ( 1/2\,dx+c/2 \right ) \right ) ^{2}a}\sqrt{-a}-a}{\cosh \left ( 1/2\,dx+c/2 \right ) }} \right ) a \left ( \cosh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}-\sqrt{ \left ( \sinh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}a}\sqrt{-a} \right ) \left ( \cosh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{-1}{\frac{1}{\sqrt{-a}}} \left ( \sinh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{-1}{\frac{1}{\sqrt{a \left ( \cosh \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.99841, size = 230, normalized size = 2.99 \begin{align*} \frac{1}{6} \, \sqrt{2}{\left (\frac{3 \, e^{\left (\frac{5}{2} \, d x + \frac{5}{2} \, c\right )} + 8 \, e^{\left (\frac{3}{2} \, d x + \frac{3}{2} \, c\right )} - 3 \, e^{\left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}}{{\left (a^{\frac{3}{2}} e^{\left (3 \, d x + 3 \, c\right )} + 3 \, a^{\frac{3}{2}} e^{\left (2 \, d x + 2 \, c\right )} + 3 \, a^{\frac{3}{2}} e^{\left (d x + c\right )} + a^{\frac{3}{2}}\right )} d} + \frac{3 \, \arctan \left (e^{\left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}\right )}{a^{\frac{3}{2}} d}\right )} - \frac{4 \, \sqrt{2} e^{\left (\frac{3}{2} \, d x + \frac{3}{2} \, c\right )}}{3 \,{\left (a^{\frac{3}{2}} d e^{\left (3 \, d x + 3 \, c\right )} + 3 \, a^{\frac{3}{2}} d e^{\left (2 \, d x + 2 \, c\right )} + 3 \, a^{\frac{3}{2}} d e^{\left (d x + c\right )} + a^{\frac{3}{2}} d\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.90273, size = 632, normalized size = 8.21 \begin{align*} -\frac{\sqrt{2}{\left (\cosh \left (d x + c\right )^{2} + 2 \,{\left (\cosh \left (d x + c\right ) + 1\right )} \sinh \left (d x + c\right ) + \sinh \left (d x + c\right )^{2} + 2 \, \cosh \left (d x + c\right ) + 1\right )} \sqrt{a} \arctan \left (\frac{\sqrt{2} \sqrt{\frac{1}{2}} \sqrt{a} \sqrt{\frac{a}{\cosh \left (d x + c\right ) + \sinh \left (d x + c\right )}}}{a}\right ) - 2 \, \sqrt{\frac{1}{2}}{\left (\cosh \left (d x + c\right )^{2} +{\left (2 \, \cosh \left (d x + c\right ) - 1\right )} \sinh \left (d x + c\right ) + \sinh \left (d x + c\right )^{2} - \cosh \left (d x + c\right )\right )} \sqrt{\frac{a}{\cosh \left (d x + c\right ) + \sinh \left (d x + c\right )}}}{2 \,{\left (a^{2} d \cosh \left (d x + c\right )^{2} + a^{2} d \sinh \left (d x + c\right )^{2} + 2 \, a^{2} d \cosh \left (d x + c\right ) + a^{2} d + 2 \,{\left (a^{2} d \cosh \left (d x + c\right ) + a^{2} d\right )} \sinh \left (d x + c\right )\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{1}{\left (a \cosh{\left (c + d x \right )} + a\right )^{\frac{3}{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.25308, size = 99, normalized size = 1.29 \begin{align*} \frac{\frac{\sqrt{2} \arctan \left (e^{\left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}\right )}{\sqrt{a} d} + \frac{\sqrt{2}{\left (a^{\frac{3}{2}} e^{\left (\frac{3}{2} \, d x + \frac{3}{2} \, c\right )} - a^{\frac{3}{2}} e^{\left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}\right )}}{{\left (a e^{\left (d x + c\right )} + a\right )}^{2} d}}{2 \, a} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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