Optimal. Leaf size=71 \[ \frac{2 x \sqrt{\sinh (a+b x)}}{b}+\frac{4 i \sqrt{\sinh (a+b x)} E\left (\left .\frac{1}{2} \left (i a+i b x-\frac{\pi }{2}\right )\right |2\right )}{b^2 \sqrt{i \sinh (a+b x)}} \]
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Rubi [A] time = 0.03856, antiderivative size = 71, 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 = {5372, 2640, 2639} \[ \frac{2 x \sqrt{\sinh (a+b x)}}{b}+\frac{4 i \sqrt{\sinh (a+b x)} E\left (\left .\frac{1}{2} \left (i a+i b x-\frac{\pi }{2}\right )\right |2\right )}{b^2 \sqrt{i \sinh (a+b x)}} \]
Antiderivative was successfully verified.
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Rule 5372
Rule 2640
Rule 2639
Rubi steps
\begin{align*} \int \frac{x \cosh (a+b x)}{\sqrt{\sinh (a+b x)}} \, dx &=\frac{2 x \sqrt{\sinh (a+b x)}}{b}-\frac{2 \int \sqrt{\sinh (a+b x)} \, dx}{b}\\ &=\frac{2 x \sqrt{\sinh (a+b x)}}{b}-\frac{\left (2 \sqrt{\sinh (a+b x)}\right ) \int \sqrt{i \sinh (a+b x)} \, dx}{b \sqrt{i \sinh (a+b x)}}\\ &=\frac{2 x \sqrt{\sinh (a+b x)}}{b}+\frac{4 i E\left (\left .\frac{1}{2} \left (i a-\frac{\pi }{2}+i b x\right )\right |2\right ) \sqrt{\sinh (a+b x)}}{b^2 \sqrt{i \sinh (a+b x)}}\\ \end{align*}
Mathematica [C] time = 1.69049, size = 182, normalized size = 2.56 \[ \frac{e^{-a-b x} \sqrt{2-2 e^{2 (a+b x)}} \left (-18 \text{HypergeometricPFQ}\left (\left \{-\frac{1}{4},-\frac{1}{4},\frac{1}{2}\right \},\left \{\frac{3}{4},\frac{3}{4}\right \},e^{2 (a+b x)}\right )-2 e^{2 (a+b x)} \text{HypergeometricPFQ}\left (\left \{\frac{1}{2},\frac{3}{4},\frac{3}{4}\right \},\left \{\frac{7}{4},\frac{7}{4}\right \},e^{2 (a+b x)}\right )-3 b x \left (3 \, _2F_1\left (-\frac{1}{4},\frac{1}{2};\frac{3}{4};e^{2 (a+b x)}\right )-e^{2 (a+b x)} \, _2F_1\left (\frac{1}{2},\frac{3}{4};\frac{7}{4};e^{2 (a+b x)}\right )\right )\right )}{9 b^2 \sqrt{e^{a+b x}-e^{-a-b x}}} \]
Warning: Unable to verify antiderivative.
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Maple [B] time = 0.062, size = 229, normalized size = 3.2 \begin{align*}{\frac{ \left ( bx-2 \right ) \left ( \left ({{\rm e}^{bx+a}} \right ) ^{2}-1 \right ) \sqrt{2}}{{b}^{2}{{\rm e}^{bx+a}}}{\frac{1}{\sqrt{{\frac{ \left ({{\rm e}^{bx+a}} \right ) ^{2}-1}{{{\rm e}^{bx+a}}}}}}}}+2\,{\frac{\sqrt{2}\sqrt{ \left ( \left ({{\rm e}^{bx+a}} \right ) ^{2}-1 \right ){{\rm e}^{bx+a}}}}{{b}^{2}{{\rm e}^{bx+a}}} \left ( 2\,{\frac{ \left ({{\rm e}^{bx+a}} \right ) ^{2}-1}{\sqrt{ \left ( \left ({{\rm e}^{bx+a}} \right ) ^{2}-1 \right ){{\rm e}^{bx+a}}}}}-{\frac{\sqrt{1+{{\rm e}^{bx+a}}}\sqrt{2-2\,{{\rm e}^{bx+a}}}\sqrt{-{{\rm e}^{bx+a}}} \left ( -2\,{\it EllipticE} \left ( \sqrt{1+{{\rm e}^{bx+a}}},1/2\,\sqrt{2} \right ) +{\it EllipticF} \left ( \sqrt{1+{{\rm e}^{bx+a}}},1/2\,\sqrt{2} \right ) \right ) }{\sqrt{ \left ({{\rm e}^{bx+a}} \right ) ^{3}-{{\rm e}^{bx+a}}}}} \right ){\frac{1}{\sqrt{{\frac{ \left ({{\rm e}^{bx+a}} \right ) ^{2}-1}{{{\rm e}^{bx+a}}}}}}}} \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 \cosh \left (b x + a\right )}{\sqrt{\sinh \left (b x + a\right )}}\,{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] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x \cosh{\left (a + b x \right )}}{\sqrt{\sinh{\left (a + b x \right )}}}\, dx \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 \cosh \left (b x + a\right )}{\sqrt{\sinh \left (b x + a\right )}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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