Optimal. Leaf size=110 \[ 2 e^{-x} \sqrt {e^x+e^{2 x}}-\frac {\tan ^{-1}\left (\frac {i-(1-2 i) e^x}{2 \sqrt {1+i} \sqrt {e^x+e^{2 x}}}\right )}{\sqrt {1+i}}+\frac {\tan ^{-1}\left (\frac {(1+2 i) e^x+i}{2 \sqrt {1-i} \sqrt {e^x+e^{2 x}}}\right )}{\sqrt {1-i}} \]
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Rubi [A] time = 0.61, antiderivative size = 147, normalized size of antiderivative = 1.34, number of steps used = 11, number of rules used = 7, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.438, Rules used = {2282, 6724, 1586, 6725, 94, 93, 208} \[ \frac {2 \left (e^x+1\right )}{\sqrt {e^x+e^{2 x}}}-\frac {(1-i)^{3/2} \sqrt {e^x} \sqrt {e^x+1} \tanh ^{-1}\left (\frac {\sqrt {1-i} \sqrt {e^x}}{\sqrt {e^x+1}}\right )}{\sqrt {e^x+e^{2 x}}}-\frac {(1+i)^{3/2} \sqrt {e^x} \sqrt {e^x+1} \tanh ^{-1}\left (\frac {\sqrt {1+i} \sqrt {e^x}}{\sqrt {e^x+1}}\right )}{\sqrt {e^x+e^{2 x}}} \]
Antiderivative was successfully verified.
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Rule 93
Rule 94
Rule 208
Rule 1586
Rule 2282
Rule 6724
Rule 6725
Rubi steps
\begin {align*} \int \frac {\tanh (x)}{\sqrt {e^x+e^{2 x}}} \, dx &=\operatorname {Subst}\left (\int \frac {-1+x^2}{x \left (1+x^2\right ) \sqrt {x+x^2}} \, dx,x,e^x\right )\\ &=\frac {\left (\sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {-1+x^2}{x^{3/2} \sqrt {1+x} \left (1+x^2\right )} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}\\ &=\frac {\left (\sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {(-1+x) \sqrt {1+x}}{x^{3/2} \left (1+x^2\right )} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}\\ &=\frac {\left (\sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \left (-\frac {\left (\frac {1}{2}+\frac {i}{2}\right ) \sqrt {1+x}}{(i-x) x^{3/2}}+\frac {\left (\frac {1}{2}-\frac {i}{2}\right ) \sqrt {1+x}}{x^{3/2} (i+x)}\right ) \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}\\ &=-\frac {\left (\left (\frac {1}{2}+\frac {i}{2}\right ) \sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {\sqrt {1+x}}{(i-x) x^{3/2}} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}+\frac {\left (\left (\frac {1}{2}-\frac {i}{2}\right ) \sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {\sqrt {1+x}}{x^{3/2} (i+x)} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}\\ &=\frac {2 \left (1+e^x\right )}{\sqrt {e^x+e^{2 x}}}-\frac {\left (\sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {1}{(i-x) \sqrt {x} \sqrt {1+x}} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}+\frac {\left (\sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt {x} (i+x) \sqrt {1+x}} \, dx,x,e^x\right )}{\sqrt {e^x+e^{2 x}}}\\ &=\frac {2 \left (1+e^x\right )}{\sqrt {e^x+e^{2 x}}}-\frac {\left (2 \sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {1}{i-(1+i) x^2} \, dx,x,\frac {\sqrt {e^x}}{\sqrt {1+e^x}}\right )}{\sqrt {e^x+e^{2 x}}}+\frac {\left (2 \sqrt {e^x} \sqrt {1+e^x}\right ) \operatorname {Subst}\left (\int \frac {1}{i+(1-i) x^2} \, dx,x,\frac {\sqrt {e^x}}{\sqrt {1+e^x}}\right )}{\sqrt {e^x+e^{2 x}}}\\ &=\frac {2 \left (1+e^x\right )}{\sqrt {e^x+e^{2 x}}}-\frac {(1-i)^{3/2} \sqrt {e^x} \sqrt {1+e^x} \tanh ^{-1}\left (\frac {\sqrt {1-i} \sqrt {e^x}}{\sqrt {1+e^x}}\right )}{\sqrt {e^x+e^{2 x}}}-\frac {(1+i)^{3/2} \sqrt {e^x} \sqrt {1+e^x} \tanh ^{-1}\left (\frac {\sqrt {1+i} \sqrt {e^x}}{\sqrt {1+e^x}}\right )}{\sqrt {e^x+e^{2 x}}}\\ \end {align*}
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Mathematica [A] time = 0.13, size = 121, normalized size = 1.10 \[ \frac {2 e^x-(1-i)^{3/2} e^{x/2} \sqrt {e^x+1} \tanh ^{-1}\left (\frac {\sqrt {1-i} e^{x/2}}{\sqrt {e^x+1}}\right )-(1+i)^{3/2} e^{x/2} \sqrt {e^x+1} \tanh ^{-1}\left (\frac {\sqrt {1+i} e^{x/2}}{\sqrt {e^x+1}}\right )+2}{\sqrt {e^x \left (e^x+1\right )}} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.46, size = 859, normalized size = 7.81 \[ \text {result too large to display} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 0.59, size = 377, normalized size = 3.43 \[ -\left (\frac {1}{4} i + \frac {1}{4}\right ) \, \sqrt {2 \, \sqrt {2} - 2} {\left (\frac {i}{\sqrt {2} - 1} + 1\right )} \log \left (\sqrt {2} {\left (\left (20 i + 40\right ) \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} - \left (20 i + 40\right ) \, e^{x}\right )} + 10 \, \sqrt {2} \sqrt {10 \, \sqrt {2} - 14} + \left (40 i - 20\right ) \, \sqrt {2} - \left (2 i + 14\right ) \, \sqrt {10 \, \sqrt {2} - 14} - \left (28 i + 56\right ) \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} + \left (28 i + 56\right ) \, e^{x} - 56 i + 28\right ) + \left (\frac {1}{4} i + \frac {1}{4}\right ) \, \sqrt {2 \, \sqrt {2} - 2} {\left (\frac {i}{\sqrt {2} - 1} + 1\right )} \log \left (\sqrt {2} {\left (\left (20 i + 40\right ) \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} - \left (20 i + 40\right ) \, e^{x}\right )} - 10 \, \sqrt {2} \sqrt {10 \, \sqrt {2} - 14} + \left (40 i - 20\right ) \, \sqrt {2} + \left (2 i + 14\right ) \, \sqrt {10 \, \sqrt {2} - 14} - \left (28 i + 56\right ) \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} + \left (28 i + 56\right ) \, e^{x} - 56 i + 28\right ) - \left (\frac {1}{4} i + \frac {1}{4}\right ) \, \sqrt {2 \, \sqrt {2} + 2} {\left (\frac {i}{\sqrt {2} + 1} + 1\right )} \log \left (4 \, \sqrt {2} {\left (\sqrt {e^{\left (2 \, x\right )} + e^{x}} - e^{x}\right )} + 2 \, \sqrt {2} \sqrt {2 \, \sqrt {2} - 2} - 4 i \, \sqrt {2} - \left (2 i + 2\right ) \, \sqrt {2 \, \sqrt {2} - 2} - 4 \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} + 4 \, e^{x} + 4 i\right ) + \left (\frac {1}{4} i + \frac {1}{4}\right ) \, \sqrt {2 \, \sqrt {2} + 2} {\left (\frac {i}{\sqrt {2} + 1} + 1\right )} \log \left (4 \, \sqrt {2} {\left (\sqrt {e^{\left (2 \, x\right )} + e^{x}} - e^{x}\right )} - 2 \, \sqrt {2} \sqrt {2 \, \sqrt {2} - 2} - 4 i \, \sqrt {2} + \left (2 i + 2\right ) \, \sqrt {2 \, \sqrt {2} - 2} - 4 \, \sqrt {e^{\left (2 \, x\right )} + e^{x}} + 4 \, e^{x} + 4 i\right ) + \frac {2}{\sqrt {e^{\left (2 \, x\right )} + e^{x}} - e^{x}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.18, size = 366, normalized size = 3.33 \[ -\frac {\sqrt {2}\, \left (4 \sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \arctan \left (\frac {2 \sqrt {\tanh \left (\frac {x}{2}\right )+1}-\sqrt {2+2 \sqrt {2}}}{\sqrt {-2+2 \sqrt {2}}}\right )+4 \sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \arctan \left (\frac {2 \sqrt {\tanh \left (\frac {x}{2}\right )+1}+\sqrt {2+2 \sqrt {2}}}{\sqrt {-2+2 \sqrt {2}}}\right )+\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2}\, \sqrt {-2+2 \sqrt {2}}\, \sqrt {2+2 \sqrt {2}}\, \ln \left (\tanh \left (\frac {x}{2}\right )+1-\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2+2 \sqrt {2}}+\sqrt {2}\right )-\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {-2+2 \sqrt {2}}\, \sqrt {2+2 \sqrt {2}}\, \ln \left (\tanh \left (\frac {x}{2}\right )+1-\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2+2 \sqrt {2}}+\sqrt {2}\right )-\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2}\, \sqrt {-2+2 \sqrt {2}}\, \sqrt {2+2 \sqrt {2}}\, \ln \left (\tanh \left (\frac {x}{2}\right )+1+\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2+2 \sqrt {2}}+\sqrt {2}\right )+\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {-2+2 \sqrt {2}}\, \sqrt {2+2 \sqrt {2}}\, \ln \left (\tanh \left (\frac {x}{2}\right )+1+\sqrt {\tanh \left (\frac {x}{2}\right )+1}\, \sqrt {2+2 \sqrt {2}}+\sqrt {2}\right )+8 \sqrt {-2+2 \sqrt {2}}\right )}{4 \sqrt {-2+2 \sqrt {2}}\, \left (\tanh \left (\frac {x}{2}\right )-1\right ) \sqrt {\frac {\tanh \left (\frac {x}{2}\right )+1}{\left (\tanh \left (\frac {x}{2}\right )-1\right )^{2}}}} \]
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 \[ \int \frac {\tanh \relax (x)}{\sqrt {e^{\left (2 \, x\right )} + e^{x}}}\,{d x} \]
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 \[ \int \frac {\mathrm {tanh}\relax (x)}{\sqrt {{\mathrm {e}}^{2\,x}+{\mathrm {e}}^x}} \,d x \]
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 \[ \int \frac {\tanh {\relax (x )}}{\sqrt {\left (e^{x} + 1\right ) e^{x}}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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