Optimal. Leaf size=61 \[ -\frac {\tan ^{-1}(x)^2}{4 x^4}-\frac {\tan ^{-1}(x)}{6 x^3}-\frac {1}{12 x^2}+\frac {1}{3} \log \left (x^2+1\right )-\frac {2 \log (x)}{3}+\frac {1}{4} \tan ^{-1}(x)^2+\frac {\tan ^{-1}(x)}{2 x} \]
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Rubi [A] time = 0.13, antiderivative size = 61, normalized size of antiderivative = 1.00, number of steps used = 13, number of rules used = 8, integrand size = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 1.000, Rules used = {4852, 4918, 266, 44, 36, 29, 31, 4884} \[ -\frac {1}{12 x^2}+\frac {1}{3} \log \left (x^2+1\right )-\frac {\tan ^{-1}(x)^2}{4 x^4}-\frac {\tan ^{-1}(x)}{6 x^3}-\frac {2 \log (x)}{3}+\frac {1}{4} \tan ^{-1}(x)^2+\frac {\tan ^{-1}(x)}{2 x} \]
Antiderivative was successfully verified.
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Rule 29
Rule 31
Rule 36
Rule 44
Rule 266
Rule 4852
Rule 4884
Rule 4918
Rubi steps
\begin {align*} \int \frac {\tan ^{-1}(x)^2}{x^5} \, dx &=-\frac {\tan ^{-1}(x)^2}{4 x^4}+\frac {1}{2} \int \frac {\tan ^{-1}(x)}{x^4 \left (1+x^2\right )} \, dx\\ &=-\frac {\tan ^{-1}(x)^2}{4 x^4}+\frac {1}{2} \int \frac {\tan ^{-1}(x)}{x^4} \, dx-\frac {1}{2} \int \frac {\tan ^{-1}(x)}{x^2 \left (1+x^2\right )} \, dx\\ &=-\frac {\tan ^{-1}(x)}{6 x^3}-\frac {\tan ^{-1}(x)^2}{4 x^4}+\frac {1}{6} \int \frac {1}{x^3 \left (1+x^2\right )} \, dx-\frac {1}{2} \int \frac {\tan ^{-1}(x)}{x^2} \, dx+\frac {1}{2} \int \frac {\tan ^{-1}(x)}{1+x^2} \, dx\\ &=-\frac {\tan ^{-1}(x)}{6 x^3}+\frac {\tan ^{-1}(x)}{2 x}+\frac {1}{4} \tan ^{-1}(x)^2-\frac {\tan ^{-1}(x)^2}{4 x^4}+\frac {1}{12} \operatorname {Subst}\left (\int \frac {1}{x^2 (1+x)} \, dx,x,x^2\right )-\frac {1}{2} \int \frac {1}{x \left (1+x^2\right )} \, dx\\ &=-\frac {\tan ^{-1}(x)}{6 x^3}+\frac {\tan ^{-1}(x)}{2 x}+\frac {1}{4} \tan ^{-1}(x)^2-\frac {\tan ^{-1}(x)^2}{4 x^4}+\frac {1}{12} \operatorname {Subst}\left (\int \left (\frac {1}{x^2}-\frac {1}{x}+\frac {1}{1+x}\right ) \, dx,x,x^2\right )-\frac {1}{4} \operatorname {Subst}\left (\int \frac {1}{x (1+x)} \, dx,x,x^2\right )\\ &=-\frac {1}{12 x^2}-\frac {\tan ^{-1}(x)}{6 x^3}+\frac {\tan ^{-1}(x)}{2 x}+\frac {1}{4} \tan ^{-1}(x)^2-\frac {\tan ^{-1}(x)^2}{4 x^4}-\frac {\log (x)}{6}+\frac {1}{12} \log \left (1+x^2\right )-\frac {1}{4} \operatorname {Subst}\left (\int \frac {1}{x} \, dx,x,x^2\right )+\frac {1}{4} \operatorname {Subst}\left (\int \frac {1}{1+x} \, dx,x,x^2\right )\\ &=-\frac {1}{12 x^2}-\frac {\tan ^{-1}(x)}{6 x^3}+\frac {\tan ^{-1}(x)}{2 x}+\frac {1}{4} \tan ^{-1}(x)^2-\frac {\tan ^{-1}(x)^2}{4 x^4}-\frac {2 \log (x)}{3}+\frac {1}{3} \log \left (1+x^2\right )\\ \end {align*}
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Mathematica [A] time = 0.02, size = 56, normalized size = 0.92 \[ \frac {\left (x^4-1\right ) \tan ^{-1}(x)^2}{4 x^4}-\frac {1}{12 x^2}+\frac {1}{3} \log \left (x^2+1\right )+\frac {\left (3 x^2-1\right ) \tan ^{-1}(x)}{6 x^3}-\frac {2 \log (x)}{3} \]
Antiderivative was successfully verified.
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IntegrateAlgebraic [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\tan ^{-1}(x)^2}{x^5} \, dx \]
Verification is Not applicable to the result.
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fricas [A] time = 1.14, size = 53, normalized size = 0.87 \[ \frac {4 \, x^{4} \log \left (x^{2} + 1\right ) - 8 \, x^{4} \log \relax (x) + 3 \, {\left (x^{4} - 1\right )} \arctan \relax (x)^{2} - x^{2} + 2 \, {\left (3 \, x^{3} - x\right )} \arctan \relax (x)}{12 \, x^{4}} \]
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 \[ \int \frac {\arctan \relax (x)^{2}}{x^{5}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.14, size = 48, normalized size = 0.79
method | result | size |
default | \(-\frac {1}{12 x^{2}}-\frac {\arctan \relax (x )}{6 x^{3}}+\frac {\arctan \relax (x )}{2 x}+\frac {\arctan \relax (x )^{2}}{4}-\frac {\arctan \relax (x )^{2}}{4 x^{4}}-\frac {2 \ln \relax (x )}{3}+\frac {\ln \left (x^{2}+1\right )}{3}\) | \(48\) |
risch | \(-\frac {\left (x^{4}-1\right ) \ln \left (i x +1\right )^{2}}{16 x^{4}}+\frac {\left (3 x^{4} \ln \left (-i x +1\right )-6 i x^{3}+2 i x -3 \ln \left (-i x +1\right )\right ) \ln \left (i x +1\right )}{24 x^{4}}-\frac {3 x^{4} \ln \left (-i x +1\right )^{2}+32 x^{4} \ln \relax (x )-16 \ln \left (x^{2}+1\right ) x^{4}-12 i x^{3} \ln \left (-i x +1\right )+4 i \ln \left (-i x +1\right ) x +4 x^{2}-3 \ln \left (-i x +1\right )^{2}}{48 x^{4}}\) | \(143\) |
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.98, size = 64, normalized size = 1.05 \[ \frac {1}{6} \, {\left (\frac {3 \, x^{2} - 1}{x^{3}} + 3 \, \arctan \relax (x)\right )} \arctan \relax (x) - \frac {3 \, x^{2} \arctan \relax (x)^{2} - 4 \, x^{2} \log \left (x^{2} + 1\right ) + 8 \, x^{2} \log \relax (x) + 1}{12 \, x^{2}} - \frac {\arctan \relax (x)^{2}}{4 \, x^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.11, size = 44, normalized size = 0.72 \[ \frac {\ln \left (x^2+1\right )}{3}-\frac {2\,\ln \relax (x)}{3}-{\mathrm {atan}\relax (x)}^2\,\left (\frac {1}{4\,x^4}-\frac {1}{4}\right )-\frac {1}{12\,x^2}+\frac {\mathrm {atan}\relax (x)\,\left (\frac {x^2}{2}-\frac {1}{6}\right )}{x^3} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.88, size = 53, normalized size = 0.87 \[ - \frac {2 \log {\relax (x )}}{3} + \frac {\log {\left (x^{2} + 1 \right )}}{3} + \frac {\operatorname {atan}^{2}{\relax (x )}}{4} + \frac {\operatorname {atan}{\relax (x )}}{2 x} - \frac {1}{12 x^{2}} - \frac {\operatorname {atan}{\relax (x )}}{6 x^{3}} - \frac {\operatorname {atan}^{2}{\relax (x )}}{4 x^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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