Optimal. Leaf size=99 \[ \sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}} x+\frac {1}{3} \left (1+\frac {1}{x}\right )^{3/2} \sqrt {\frac {-1+x}{x}} x^2+\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3+\tanh ^{-1}\left (\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}}\right ) \]
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Rubi [A]
time = 0.05, antiderivative size = 99, normalized size of antiderivative = 1.00, number of steps
used = 7, number of rules used = 6, integrand size = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.667, Rules used = {6310, 6315, 98,
96, 94, 212} \begin {gather*} \frac {1}{3} \left (\frac {1}{x}+1\right )^{5/2} \sqrt {\frac {x-1}{x}} x^3+\frac {1}{3} \left (\frac {1}{x}+1\right )^{3/2} \sqrt {\frac {x-1}{x}} x^2+\sqrt {\frac {1}{x}+1} \sqrt {\frac {x-1}{x}} x+\tanh ^{-1}\left (\sqrt {\frac {1}{x}+1} \sqrt {\frac {x-1}{x}}\right ) \end {gather*}
Antiderivative was successfully verified.
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Rule 94
Rule 96
Rule 98
Rule 212
Rule 6310
Rule 6315
Rubi steps
\begin {align*} \int e^{\coth ^{-1}(x)} x (1+x) \, dx &=\int e^{\coth ^{-1}(x)} \left (1+\frac {1}{x}\right ) x^2 \, dx\\ &=-\text {Subst}\left (\int \frac {(1+x)^{3/2}}{\sqrt {1-x} x^4} \, dx,x,\frac {1}{x}\right )\\ &=\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3-\frac {2}{3} \text {Subst}\left (\int \frac {(1+x)^{3/2}}{\sqrt {1-x} x^3} \, dx,x,\frac {1}{x}\right )\\ &=\frac {1}{3} \left (1+\frac {1}{x}\right )^{3/2} \sqrt {-\frac {1-x}{x}} x^2+\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3-\text {Subst}\left (\int \frac {\sqrt {1+x}}{\sqrt {1-x} x^2} \, dx,x,\frac {1}{x}\right )\\ &=\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}} x+\frac {1}{3} \left (1+\frac {1}{x}\right )^{3/2} \sqrt {-\frac {1-x}{x}} x^2+\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3-\text {Subst}\left (\int \frac {1}{\sqrt {1-x} x \sqrt {1+x}} \, dx,x,\frac {1}{x}\right )\\ &=\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}} x+\frac {1}{3} \left (1+\frac {1}{x}\right )^{3/2} \sqrt {-\frac {1-x}{x}} x^2+\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3+\text {Subst}\left (\int \frac {1}{1-x^2} \, dx,x,\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}}\right )\\ &=\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}} x+\frac {1}{3} \left (1+\frac {1}{x}\right )^{3/2} \sqrt {-\frac {1-x}{x}} x^2+\frac {1}{3} \left (1+\frac {1}{x}\right )^{5/2} \sqrt {\frac {-1+x}{x}} x^3+\tanh ^{-1}\left (\sqrt {1+\frac {1}{x}} \sqrt {\frac {-1+x}{x}}\right )\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 41, normalized size = 0.41 \begin {gather*} \frac {1}{3} \sqrt {1-\frac {1}{x^2}} x \left (5+3 x+x^2\right )+\log \left (\left (1+\sqrt {1-\frac {1}{x^2}}\right ) x\right ) \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [A]
time = 0.10, size = 67, normalized size = 0.68
method | result | size |
trager | \(\frac {\left (1+x \right ) \left (x^{2}+3 x +5\right ) \sqrt {-\frac {1-x}{1+x}}}{3}+\ln \left (\sqrt {-\frac {1-x}{1+x}}\, x +\sqrt {-\frac {1-x}{1+x}}+x \right )\) | \(62\) |
risch | \(\frac {\left (x^{2}+3 x +5\right ) \left (-1+x \right )}{3 \sqrt {\frac {-1+x}{1+x}}}+\frac {\ln \left (x +\sqrt {x^{2}-1}\right ) \sqrt {\left (1+x \right ) \left (-1+x \right )}}{\sqrt {\frac {-1+x}{1+x}}\, \left (1+x \right )}\) | \(62\) |
default | \(\frac {\left (-1+x \right ) \left (\left (\left (1+x \right ) \left (-1+x \right )\right )^{\frac {3}{2}}+3 x \sqrt {x^{2}-1}+3 \ln \left (x +\sqrt {x^{2}-1}\right )+6 \sqrt {x^{2}-1}\right )}{3 \sqrt {\frac {-1+x}{1+x}}\, \sqrt {\left (1+x \right ) \left (-1+x \right )}}\) | \(67\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.26, size = 110, normalized size = 1.11 \begin {gather*} -\frac {2 \, {\left (3 \, \left (\frac {x - 1}{x + 1}\right )^{\frac {5}{2}} - 8 \, \left (\frac {x - 1}{x + 1}\right )^{\frac {3}{2}} + 9 \, \sqrt {\frac {x - 1}{x + 1}}\right )}}{3 \, {\left (\frac {3 \, {\left (x - 1\right )}}{x + 1} - \frac {3 \, {\left (x - 1\right )}^{2}}{{\left (x + 1\right )}^{2}} + \frac {{\left (x - 1\right )}^{3}}{{\left (x + 1\right )}^{3}} - 1\right )}} + \log \left (\sqrt {\frac {x - 1}{x + 1}} + 1\right ) - \log \left (\sqrt {\frac {x - 1}{x + 1}} - 1\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 57, normalized size = 0.58 \begin {gather*} \frac {1}{3} \, {\left (x^{3} + 4 \, x^{2} + 8 \, x + 5\right )} \sqrt {\frac {x - 1}{x + 1}} + \log \left (\sqrt {\frac {x - 1}{x + 1}} + 1\right ) - \log \left (\sqrt {\frac {x - 1}{x + 1}} - 1\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 \left (x + 1\right )}{\sqrt {\frac {x - 1}{x + 1}}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.41, size = 59, normalized size = 0.60 \begin {gather*} \frac {1}{3} \, \sqrt {x^{2} - 1} {\left (x {\left (\frac {x}{\mathrm {sgn}\left (x + 1\right )} + \frac {3}{\mathrm {sgn}\left (x + 1\right )}\right )} + \frac {5}{\mathrm {sgn}\left (x + 1\right )}\right )} - \frac {\log \left ({\left | -x + \sqrt {x^{2} - 1} \right |}\right )}{\mathrm {sgn}\left (x + 1\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.23, size = 94, normalized size = 0.95 \begin {gather*} 2\,\mathrm {atanh}\left (\sqrt {\frac {x-1}{x+1}}\right )-\frac {6\,\sqrt {\frac {x-1}{x+1}}-\frac {16\,{\left (\frac {x-1}{x+1}\right )}^{3/2}}{3}+2\,{\left (\frac {x-1}{x+1}\right )}^{5/2}}{\frac {3\,\left (x-1\right )}{x+1}-\frac {3\,{\left (x-1\right )}^2}{{\left (x+1\right )}^2}+\frac {{\left (x-1\right )}^3}{{\left (x+1\right )}^3}-1} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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