Optimal. Leaf size=186 \[ \frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}-\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {x \log \left (\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}+1\right )}{\sqrt {4 a^2+b^2}}-\frac {x \log \left (\frac {b e^{2 x}}{\sqrt {4 a^2+b^2}+2 a}+1\right )}{\sqrt {4 a^2+b^2}} \]
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Rubi [A] time = 0.30, antiderivative size = 186, 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 = {5628, 3322, 2264, 2190, 2279, 2391} \[ \frac {\text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}-\frac {\text {PolyLog}\left (2,-\frac {b e^{2 x}}{\sqrt {4 a^2+b^2}+2 a}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {x \log \left (\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}+1\right )}{\sqrt {4 a^2+b^2}}-\frac {x \log \left (\frac {b e^{2 x}}{\sqrt {4 a^2+b^2}+2 a}+1\right )}{\sqrt {4 a^2+b^2}} \]
Antiderivative was successfully verified.
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Rule 2190
Rule 2264
Rule 2279
Rule 2391
Rule 3322
Rule 5628
Rubi steps
\begin {align*} \int \frac {x}{a+b \cosh (x) \sinh (x)} \, dx &=\int \frac {x}{a+\frac {1}{2} b \sinh (2 x)} \, dx\\ &=2 \int \frac {e^{2 x} x}{-\frac {b}{2}+2 a e^{2 x}+\frac {1}{2} b e^{4 x}} \, dx\\ &=\frac {(2 b) \int \frac {e^{2 x} x}{2 a-\sqrt {4 a^2+b^2}+b e^{2 x}} \, dx}{\sqrt {4 a^2+b^2}}-\frac {(2 b) \int \frac {e^{2 x} x}{2 a+\sqrt {4 a^2+b^2}+b e^{2 x}} \, dx}{\sqrt {4 a^2+b^2}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\int \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}+\frac {\int \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\operatorname {Subst}\left (\int \frac {\log \left (1+\frac {b x}{2 a-\sqrt {4 a^2+b^2}}\right )}{x} \, dx,x,e^{2 x}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {\operatorname {Subst}\left (\int \frac {\log \left (1+\frac {b x}{2 a+\sqrt {4 a^2+b^2}}\right )}{x} \, dx,x,e^{2 x}\right )}{2 \sqrt {4 a^2+b^2}}\\ &=\frac {x \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}+\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}-\frac {\text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}\\ \end {align*}
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Mathematica [C] time = 1.87, size = 956, normalized size = 5.14 \[ \frac {1}{2} \left (-\frac {i \pi \tanh ^{-1}\left (\frac {2 a \tanh (x)-b}{\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {2 \cos ^{-1}\left (-\frac {2 i a}{b}\right ) \tanh ^{-1}\left (\frac {(2 a+i b) \cot \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )+(\pi -4 i x) \tanh ^{-1}\left (\frac {(2 a-i b) \tan \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )-\left (\cos ^{-1}\left (-\frac {2 i a}{b}\right )+2 i \tanh ^{-1}\left (\frac {(2 a+i b) \cot \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )\right ) \log \left (\frac {(2 i a+b) \left (-2 i a+b+\sqrt {-4 a^2-b^2}\right ) \left (i \cot \left (\frac {1}{4} (4 i x+\pi )\right )+1\right )}{b \left (2 i a+b+i \sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}\right )-\left (\cos ^{-1}\left (-\frac {2 i a}{b}\right )-2 i \tanh ^{-1}\left (\frac {(2 a+i b) \cot \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )\right ) \log \left (\frac {(2 i a+b) \left (2 i a-b+\sqrt {-4 a^2-b^2}\right ) \left (\cot \left (\frac {1}{4} (4 i x+\pi )\right )+i\right )}{b \left (2 a-i b+\sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}\right )+\left (\cos ^{-1}\left (-\frac {2 i a}{b}\right )-2 i \tanh ^{-1}\left (\frac {(2 a+i b) \cot \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )-2 i \tanh ^{-1}\left (\frac {(2 a-i b) \tan \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )\right ) \log \left (-\frac {(-1)^{3/4} \sqrt {-4 a^2-b^2} e^{-x}}{2 \sqrt {-i b} \sqrt {a+b \cosh (x) \sinh (x)}}\right )+\left (\cos ^{-1}\left (-\frac {2 i a}{b}\right )+2 i \left (\tanh ^{-1}\left (\frac {(2 a+i b) \cot \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )+\tanh ^{-1}\left (\frac {(2 a-i b) \tan \left (\frac {1}{4} (4 i x+\pi )\right )}{\sqrt {-4 a^2-b^2}}\right )\right )\right ) \log \left (\frac {\sqrt [4]{-1} \sqrt {-4 a^2-b^2} e^x}{2 \sqrt {-i b} \sqrt {a+b \cosh (x) \sinh (x)}}\right )+i \left (\text {Li}_2\left (\frac {\left (2 i a+\sqrt {-4 a^2-b^2}\right ) \left (2 i a+b-i \sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}{b \left (2 i a+b+i \sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}\right )-\text {Li}_2\left (\frac {\left (2 a+i \sqrt {-4 a^2-b^2}\right ) \left (-2 a+i b+\sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}{b \left (2 i a+b+i \sqrt {-4 a^2-b^2} \cot \left (\frac {1}{4} (4 i x+\pi )\right )\right )}\right )\right )}{\sqrt {-4 a^2-b^2}}\right ) \]
Antiderivative was successfully verified.
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fricas [B] time = 0.48, size = 754, normalized size = 4.05 \[ -\frac {b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) - {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} + b}{b}\right ) + b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (-\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) - {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} - b}{b}\right ) - b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) + {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} + b}{b}\right ) - b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (-\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) + {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} - b}{b}\right ) + b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (-\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) - {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} + b}{b} + 1\right ) + b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) - {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} - b}{b} + 1\right ) - b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (-\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) + {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} + b}{b} + 1\right ) - b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (\frac {{\left (2 \, a \cosh \relax (x) + 2 \, a \sinh \relax (x) + {\left (b \cosh \relax (x) + b \sinh \relax (x)\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} - b}{b} + 1\right )}{4 \, a^{2} + b^{2}} \]
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 \[ \int \frac {x}{b \cosh \relax (x) \sinh \relax (x) + a}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.30, size = 376, normalized size = 2.02 \[ \frac {\ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right ) x}{-2 a -\sqrt {4 a^{2}+b^{2}}}+\frac {2 \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right ) a x}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}-\frac {x^{2}}{-2 a -\sqrt {4 a^{2}+b^{2}}}-\frac {2 a \,x^{2}}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{-4 a -2 \sqrt {4 a^{2}+b^{2}}}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right ) a}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}+\frac {x \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{\sqrt {4 a^{2}+b^{2}}-2 a}\right )}{\sqrt {4 a^{2}+b^{2}}}-\frac {x^{2}}{\sqrt {4 a^{2}+b^{2}}}+\frac {\polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{\sqrt {4 a^{2}+b^{2}}-2 a}\right )}{2 \sqrt {4 a^{2}+b^{2}}} \]
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 \[ \int \frac {x}{b \cosh \relax (x) \sinh \relax (x) + a}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {x}{a+b\,\mathrm {cosh}\relax (x)\,\mathrm {sinh}\relax (x)} \,d x \]
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 \[ \int \frac {x}{a + b \sinh {\relax (x )} \cosh {\relax (x )}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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