Optimal. Leaf size=215 \[ \frac {x \log \left (1+\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}+\frac {\text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{4 \sqrt {a} \sqrt {a-b}}-\frac {\text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{4 \sqrt {a} \sqrt {a-b}} \]
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Rubi [A]
time = 0.25, antiderivative size = 215, normalized size of antiderivative = 1.00, number of steps
used = 9, number of rules used = 6, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {5748, 3401,
2296, 2221, 2317, 2438} \begin {gather*} \frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a-2 \sqrt {a-b} \sqrt {a}-b}\right )}{4 \sqrt {a} \sqrt {a-b}}-\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a+2 \sqrt {a-b} \sqrt {a}-b}\right )}{4 \sqrt {a} \sqrt {a-b}}+\frac {x \log \left (\frac {b e^{2 x}}{-2 \sqrt {a} \sqrt {a-b}+2 a-b}+1\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {x \log \left (\frac {b e^{2 x}}{2 \sqrt {a} \sqrt {a-b}+2 a-b}+1\right )}{2 \sqrt {a} \sqrt {a-b}} \end {gather*}
Antiderivative was successfully verified.
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Rule 2221
Rule 2296
Rule 2317
Rule 2438
Rule 3401
Rule 5748
Rubi steps
\begin {align*} \int \frac {x}{a+b \sinh ^2(x)} \, dx &=2 \int \frac {x}{2 a-b+b \cosh (2 x)} \, dx\\ &=4 \int \frac {e^{2 x} x}{b+2 (2 a-b) e^{2 x}+b e^{4 x}} \, dx\\ &=\frac {(2 b) \int \frac {e^{2 x} x}{-4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)+2 b e^{2 x}} \, dx}{\sqrt {a} \sqrt {a-b}}-\frac {(2 b) \int \frac {e^{2 x} x}{4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)+2 b e^{2 x}} \, dx}{\sqrt {a} \sqrt {a-b}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {\int \log \left (1+\frac {2 b e^{2 x}}{-4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)}\right ) \, dx}{2 \sqrt {a} \sqrt {a-b}}+\frac {\int \log \left (1+\frac {2 b e^{2 x}}{4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)}\right ) \, dx}{2 \sqrt {a} \sqrt {a-b}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {\text {Subst}\left (\int \frac {\log \left (1+\frac {2 b x}{-4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)}\right )}{x} \, dx,x,e^{2 x}\right )}{4 \sqrt {a} \sqrt {a-b}}+\frac {\text {Subst}\left (\int \frac {\log \left (1+\frac {2 b x}{4 \sqrt {a} \sqrt {a-b}+2 (2 a-b)}\right )}{x} \, dx,x,e^{2 x}\right )}{4 \sqrt {a} \sqrt {a-b}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{2 \sqrt {a} \sqrt {a-b}}+\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a-2 \sqrt {a} \sqrt {a-b}-b}\right )}{4 \sqrt {a} \sqrt {a-b}}-\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a+2 \sqrt {a} \sqrt {a-b}-b}\right )}{4 \sqrt {a} \sqrt {a-b}}\\ \end {align*}
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Mathematica [C] Result contains complex when optimal does not.
time = 0.64, size = 576, normalized size = 2.68 \begin {gather*} -\frac {4 x \text {ArcTan}\left (\frac {a \coth (x)}{\sqrt {-a (a-b)}}\right )-2 i \text {ArcCos}\left (1-\frac {2 a}{b}\right ) \text {ArcTan}\left (\frac {\sqrt {-a^2+a b} \tanh (x)}{a}\right )+\left (\text {ArcCos}\left (1-\frac {2 a}{b}\right )+2 \left (\text {ArcTan}\left (\frac {a \coth (x)}{\sqrt {-a (a-b)}}\right )+\text {ArcTan}\left (\frac {\sqrt {-a^2+a b} \tanh (x)}{a}\right )\right )\right ) \log \left (\frac {\sqrt {2} \sqrt {a (-a+b)} e^{-x}}{\sqrt {b} \sqrt {2 a-b+b \cosh (2 x)}}\right )+\left (\text {ArcCos}\left (1-\frac {2 a}{b}\right )-2 \left (\text {ArcTan}\left (\frac {a \coth (x)}{\sqrt {-a (a-b)}}\right )+\text {ArcTan}\left (\frac {\sqrt {-a^2+a b} \tanh (x)}{a}\right )\right )\right ) \log \left (\frac {\sqrt {2} \sqrt {a (-a+b)} e^x}{\sqrt {b} \sqrt {2 a-b+b \cosh (2 x)}}\right )-\left (\text {ArcCos}\left (1-\frac {2 a}{b}\right )+2 \text {ArcTan}\left (\frac {\sqrt {-a^2+a b} \tanh (x)}{a}\right )\right ) \log \left (\frac {2 a \left (-i a+i b+\sqrt {a (-a+b)}\right ) (-1+\tanh (x))}{-i a b+b \sqrt {a (-a+b)} \tanh (x)}\right )-\left (\text {ArcCos}\left (1-\frac {2 a}{b}\right )-2 \text {ArcTan}\left (\frac {\sqrt {-a^2+a b} \tanh (x)}{a}\right )\right ) \log \left (\frac {2 a \left (i a-i b+\sqrt {a (-a+b)}\right ) (1+\tanh (x))}{-i a b+b \sqrt {a (-a+b)} \tanh (x)}\right )+i \left (-\text {PolyLog}\left (2,\frac {\left (-2 a+b-2 i \sqrt {a (-a+b)}\right ) \left (i a+\sqrt {a (-a+b)} \tanh (x)\right )}{-i a b+b \sqrt {a (-a+b)} \tanh (x)}\right )+\text {PolyLog}\left (2,\frac {\left (-2 a+b+2 i \sqrt {a (-a+b)}\right ) \left (i a+\sqrt {a (-a+b)} \tanh (x)\right )}{-i a b+b \sqrt {a (-a+b)} \tanh (x)}\right )\right )}{4 \sqrt {a (-a+b)}} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(504\) vs.
\(2(171)=342\).
time = 0.86, size = 505, normalized size = 2.35
method | result | size |
risch | \(\frac {x \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{2 \sqrt {a \left (a -b \right )}-2 a +b}\right )}{2 \sqrt {a \left (a -b \right )}}-\frac {x^{2}}{2 \sqrt {a \left (a -b \right )}}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{2 \sqrt {a \left (a -b \right )}-2 a +b}\right )}{4 \sqrt {a \left (a -b \right )}}+\frac {\ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right ) x}{-2 \sqrt {a \left (a -b \right )}-2 a +b}-\frac {x^{2}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}+\frac {\ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right ) a x}{\sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}-\frac {\ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right ) b x}{2 \sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}-\frac {a \,x^{2}}{\sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}+\frac {x^{2} b}{2 \sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right )}{-4 \sqrt {a \left (a -b \right )}-4 a +2 b}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right ) a}{2 \sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}-\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 \sqrt {a \left (a -b \right )}-2 a +b}\right ) b}{4 \sqrt {a \left (a -b \right )}\, \left (-2 \sqrt {a \left (a -b \right )}-2 a +b \right )}\) | \(505\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 837 vs.
\(2 (165) = 330\).
time = 0.50, size = 837, normalized size = 3.89 \begin {gather*} -\frac {b x \sqrt {\frac {a^{2} - a b}{b^{2}}} \log \left (\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) - 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {-\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} + 2 \, a - b}{b}} + b}{b}\right ) + b x \sqrt {\frac {a^{2} - a b}{b^{2}}} \log \left (-\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) - 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {-\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} + 2 \, a - b}{b}} - b}{b}\right ) - b x \sqrt {\frac {a^{2} - a b}{b^{2}}} \log \left (\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} - 2 \, a + b}{b}} + b}{b}\right ) - b x \sqrt {\frac {a^{2} - a b}{b^{2}}} \log \left (-\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} - 2 \, a + b}{b}} - b}{b}\right ) + b \sqrt {\frac {a^{2} - a b}{b^{2}}} {\rm Li}_2\left (-\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) - 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {-\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} + 2 \, a - b}{b}} + b}{b} + 1\right ) + b \sqrt {\frac {a^{2} - a b}{b^{2}}} {\rm Li}_2\left (\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) - 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {-\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} + 2 \, a - b}{b}} - b}{b} + 1\right ) - b \sqrt {\frac {a^{2} - a b}{b^{2}}} {\rm Li}_2\left (-\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} - 2 \, a + b}{b}} + b}{b} + 1\right ) - b \sqrt {\frac {a^{2} - a b}{b^{2}}} {\rm Li}_2\left (\frac {{\left ({\left (2 \, a - b\right )} \cosh \left (x\right ) + {\left (2 \, a - b\right )} \sinh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {a^{2} - a b}{b^{2}}}\right )} \sqrt {\frac {2 \, b \sqrt {\frac {a^{2} - a b}{b^{2}}} - 2 \, a + b}{b}} - b}{b} + 1\right )}{2 \, {\left (a^{2} - a b\right )}} \end {gather*}
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 \begin {gather*} \int \frac {x}{a + b \sinh ^{2}{\left (x \right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int \frac {x}{b\,{\mathrm {sinh}\left (x\right )}^2+a} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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