Optimal. Leaf size=100 \[ \frac {b^2 x}{a \left (a^2+b^2\right )}+\frac {a x}{a^2+b^2}-\frac {a \tanh (x)}{a^2+b^2}+\frac {b \text {sech}(x)}{a^2+b^2}+\frac {2 b^3 \tanh ^{-1}\left (\frac {a-b \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a \left (a^2+b^2\right )^{3/2}} \]
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Rubi [A] time = 0.22, antiderivative size = 100, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 9, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.692, Rules used = {3898, 2902, 2606, 8, 3473, 2735, 2660, 618, 204} \[ \frac {b^2 x}{a \left (a^2+b^2\right )}+\frac {a x}{a^2+b^2}+\frac {2 b^3 \tanh ^{-1}\left (\frac {a-b \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a \left (a^2+b^2\right )^{3/2}}-\frac {a \tanh (x)}{a^2+b^2}+\frac {b \text {sech}(x)}{a^2+b^2} \]
Antiderivative was successfully verified.
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Rule 8
Rule 204
Rule 618
Rule 2606
Rule 2660
Rule 2735
Rule 2902
Rule 3473
Rule 3898
Rubi steps
\begin {align*} \int \frac {\tanh ^2(x)}{a+b \text {csch}(x)} \, dx &=i \int \frac {\sinh (x) \tanh ^2(x)}{i b+i a \sinh (x)} \, dx\\ &=\frac {a \int \tanh ^2(x) \, dx}{a^2+b^2}-\frac {b \int \text {sech}(x) \tanh (x) \, dx}{a^2+b^2}+\frac {\left (i b^2\right ) \int \frac {\sinh (x)}{i b+i a \sinh (x)} \, dx}{a^2+b^2}\\ &=\frac {b^2 x}{a \left (a^2+b^2\right )}-\frac {a \tanh (x)}{a^2+b^2}+\frac {a \int 1 \, dx}{a^2+b^2}+\frac {b \operatorname {Subst}(\int 1 \, dx,x,\text {sech}(x))}{a^2+b^2}-\frac {\left (i b^3\right ) \int \frac {1}{i b+i a \sinh (x)} \, dx}{a \left (a^2+b^2\right )}\\ &=\frac {a x}{a^2+b^2}+\frac {b^2 x}{a \left (a^2+b^2\right )}+\frac {b \text {sech}(x)}{a^2+b^2}-\frac {a \tanh (x)}{a^2+b^2}-\frac {\left (2 i b^3\right ) \operatorname {Subst}\left (\int \frac {1}{i b+2 i a x-i b x^2} \, dx,x,\tanh \left (\frac {x}{2}\right )\right )}{a \left (a^2+b^2\right )}\\ &=\frac {a x}{a^2+b^2}+\frac {b^2 x}{a \left (a^2+b^2\right )}+\frac {b \text {sech}(x)}{a^2+b^2}-\frac {a \tanh (x)}{a^2+b^2}+\frac {\left (4 i b^3\right ) \operatorname {Subst}\left (\int \frac {1}{-4 \left (a^2+b^2\right )-x^2} \, dx,x,2 i a-2 i b \tanh \left (\frac {x}{2}\right )\right )}{a \left (a^2+b^2\right )}\\ &=\frac {a x}{a^2+b^2}+\frac {b^2 x}{a \left (a^2+b^2\right )}+\frac {2 b^3 \tanh ^{-1}\left (\frac {a-b \tanh \left (\frac {x}{2}\right )}{\sqrt {a^2+b^2}}\right )}{a \left (a^2+b^2\right )^{3/2}}+\frac {b \text {sech}(x)}{a^2+b^2}-\frac {a \tanh (x)}{a^2+b^2}\\ \end {align*}
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Mathematica [A] time = 0.33, size = 82, normalized size = 0.82 \[ -\frac {a \tanh (x)}{a^2+b^2}+\frac {b \text {sech}(x)}{a^2+b^2}+\frac {\frac {2 b^3 \tan ^{-1}\left (\frac {a-b \tanh \left (\frac {x}{2}\right )}{\sqrt {-a^2-b^2}}\right )}{\left (-a^2-b^2\right )^{3/2}}+x}{a} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.69, size = 349, normalized size = 3.49 \[ \frac {2 \, a^{4} + 2 \, a^{2} b^{2} + {\left (a^{4} + 2 \, a^{2} b^{2} + b^{4}\right )} x \cosh \relax (x)^{2} + {\left (a^{4} + 2 \, a^{2} b^{2} + b^{4}\right )} x \sinh \relax (x)^{2} + {\left (b^{3} \cosh \relax (x)^{2} + 2 \, b^{3} \cosh \relax (x) \sinh \relax (x) + b^{3} \sinh \relax (x)^{2} + b^{3}\right )} \sqrt {a^{2} + b^{2}} \log \left (\frac {a^{2} \cosh \relax (x)^{2} + a^{2} \sinh \relax (x)^{2} + 2 \, a b \cosh \relax (x) + a^{2} + 2 \, b^{2} + 2 \, {\left (a^{2} \cosh \relax (x) + a b\right )} \sinh \relax (x) + 2 \, \sqrt {a^{2} + b^{2}} {\left (a \cosh \relax (x) + a \sinh \relax (x) + b\right )}}{a \cosh \relax (x)^{2} + a \sinh \relax (x)^{2} + 2 \, b \cosh \relax (x) + 2 \, {\left (a \cosh \relax (x) + b\right )} \sinh \relax (x) - a}\right ) + {\left (a^{4} + 2 \, a^{2} b^{2} + b^{4}\right )} x + 2 \, {\left (a^{3} b + a b^{3}\right )} \cosh \relax (x) + 2 \, {\left (a^{3} b + a b^{3} + {\left (a^{4} + 2 \, a^{2} b^{2} + b^{4}\right )} x \cosh \relax (x)\right )} \sinh \relax (x)}{a^{5} + 2 \, a^{3} b^{2} + a b^{4} + {\left (a^{5} + 2 \, a^{3} b^{2} + a b^{4}\right )} \cosh \relax (x)^{2} + 2 \, {\left (a^{5} + 2 \, a^{3} b^{2} + a b^{4}\right )} \cosh \relax (x) \sinh \relax (x) + {\left (a^{5} + 2 \, a^{3} b^{2} + a b^{4}\right )} \sinh \relax (x)^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.16, size = 102, normalized size = 1.02 \[ -\frac {b^{3} \log \left (\frac {{\left | 2 \, a e^{x} + 2 \, b - 2 \, \sqrt {a^{2} + b^{2}} \right |}}{{\left | 2 \, a e^{x} + 2 \, b + 2 \, \sqrt {a^{2} + b^{2}} \right |}}\right )}{{\left (a^{3} + a b^{2}\right )} \sqrt {a^{2} + b^{2}}} + \frac {x}{a} + \frac {2 \, {\left (b e^{x} + a\right )}}{{\left (a^{2} + b^{2}\right )} {\left (e^{\left (2 \, x\right )} + 1\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.18, size = 95, normalized size = 0.95 \[ -\frac {\ln \left (\tanh \left (\frac {x}{2}\right )-1\right )}{a}+\frac {\ln \left (\tanh \left (\frac {x}{2}\right )+1\right )}{a}-\frac {2 b^{3} \arctanh \left (\frac {2 \tanh \left (\frac {x}{2}\right ) b -2 a}{2 \sqrt {a^{2}+b^{2}}}\right )}{a \left (a^{2}+b^{2}\right )^{\frac {3}{2}}}+\frac {2 b -2 a \tanh \left (\frac {x}{2}\right )}{\left (a^{2}+b^{2}\right ) \left (\tanh ^{2}\left (\frac {x}{2}\right )+1\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.42, size = 108, normalized size = 1.08 \[ -\frac {b^{3} \log \left (\frac {a e^{\left (-x\right )} - b - \sqrt {a^{2} + b^{2}}}{a e^{\left (-x\right )} - b + \sqrt {a^{2} + b^{2}}}\right )}{{\left (a^{3} + a b^{2}\right )} \sqrt {a^{2} + b^{2}}} + \frac {2 \, {\left (b e^{\left (-x\right )} - a\right )}}{a^{2} + b^{2} + {\left (a^{2} + b^{2}\right )} e^{\left (-2 \, x\right )}} + \frac {x}{a} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 2.47, size = 376, normalized size = 3.76 \[ \frac {x}{a}+\frac {\frac {2\,a}{a^2+b^2}+\frac {2\,b\,{\mathrm {e}}^x}{a^2+b^2}}{{\mathrm {e}}^{2\,x}+1}+\frac {2\,\mathrm {atan}\left (\left (\frac {a^4\,\sqrt {-a^8-3\,a^6\,b^2-3\,a^4\,b^4-a^2\,b^6}}{2}+\frac {a^2\,b^2\,\sqrt {-a^8-3\,a^6\,b^2-3\,a^4\,b^4-a^2\,b^6}}{2}\right )\,\left ({\mathrm {e}}^x\,\left (\frac {2\,b^3}{a^3\,\left (a^3+a\,b^2\right )\,\sqrt {b^6}\,\left (a^2+b^2\right )}+\frac {2\,\left (a\,b^3\,\sqrt {b^6}+a^3\,b\,\sqrt {b^6}\right )}{a^2\,b^2\,\sqrt {-a^2\,{\left (a^2+b^2\right )}^3}\,\left (a^3+a\,b^2\right )\,\sqrt {-a^8-3\,a^6\,b^2-3\,a^4\,b^4-a^2\,b^6}}\right )-\frac {2\,\left (a^4\,\sqrt {b^6}+a^2\,b^2\,\sqrt {b^6}\right )}{a^2\,b^2\,\sqrt {-a^2\,{\left (a^2+b^2\right )}^3}\,\left (a^3+a\,b^2\right )\,\sqrt {-a^8-3\,a^6\,b^2-3\,a^4\,b^4-a^2\,b^6}}\right )\right )\,\sqrt {b^6}}{\sqrt {-a^8-3\,a^6\,b^2-3\,a^4\,b^4-a^2\,b^6}} \]
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 \[ \int \frac {\tanh ^{2}{\relax (x )}}{a + b \operatorname {csch}{\relax (x )}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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