Optimal. Leaf size=14 \[ \text{Unintegrable}\left (\frac{1}{\left (2-\log \left (x^2+1\right )\right )^5},x\right ) \]
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Rubi [A] time = 0.0038601, antiderivative size = 0, normalized size of antiderivative = 0., number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0., Rules used = {} \[ \int \frac{1}{\left (2-\log \left (1+x^2\right )\right )^5} \, dx \]
Verification is Not applicable to the result.
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Rubi steps
\begin{align*} \int \frac{1}{\left (2-\log \left (1+x^2\right )\right )^5} \, dx &=\int \frac{1}{\left (2-\log \left (1+x^2\right )\right )^5} \, dx\\ \end{align*}
Mathematica [A] time = 2.81093, size = 0, normalized size = 0. \[ \int \frac{1}{\left (2-\log \left (1+x^2\right )\right )^5} \, dx \]
Verification is Not applicable to the result.
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Maple [A] time = 0.028, size = 0, normalized size = 0. \begin{align*} \int \left ( 2-\ln \left ({x}^{2}+1 \right ) \right ) ^{-5}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0., size = 0, normalized size = 0. \begin{align*} \frac{32 \, x^{8} + 56 \, x^{6} + 120 \, x^{4} +{\left (x^{8} - 10 \, x^{4} - 24 \, x^{2} - 15\right )} \log \left (x^{2} + 1\right )^{3} - 2 \,{\left (2 \, x^{8} - x^{6} - 33 \, x^{4} - 75 \, x^{2} - 45\right )} \log \left (x^{2} + 1\right )^{2} + 216 \, x^{2} + 4 \,{\left (3 \, x^{8} - 2 \, x^{6} - 38 \, x^{4} - 78 \, x^{2} - 45\right )} \log \left (x^{2} + 1\right ) + 120}{384 \,{\left (x^{7} \log \left (x^{2} + 1\right )^{4} - 8 \, x^{7} \log \left (x^{2} + 1\right )^{3} + 24 \, x^{7} \log \left (x^{2} + 1\right )^{2} - 32 \, x^{7} \log \left (x^{2} + 1\right ) + 16 \, x^{7}\right )}} - \int \frac{x^{8} + 30 \, x^{4} + 120 \, x^{2} + 105}{384 \,{\left (x^{8} \log \left (x^{2} + 1\right ) - 2 \, x^{8}\right )}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (-\frac{1}{\log \left (x^{2} + 1\right )^{5} - 10 \, \log \left (x^{2} + 1\right )^{4} + 40 \, \log \left (x^{2} + 1\right )^{3} - 80 \, \log \left (x^{2} + 1\right )^{2} + 80 \, \log \left (x^{2} + 1\right ) - 32}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0., size = 0, normalized size = 0. \begin{align*} - \frac{\int \frac{120 x^{2}}{x^{8} \log{\left (x^{2} + 1 \right )} - 2 x^{8}}\, dx + \int \frac{30 x^{4}}{x^{8} \log{\left (x^{2} + 1 \right )} - 2 x^{8}}\, dx + \int \frac{x^{8}}{x^{8} \log{\left (x^{2} + 1 \right )} - 2 x^{8}}\, dx + \int \frac{105}{x^{8} \log{\left (x^{2} + 1 \right )} - 2 x^{8}}\, dx}{384} + \frac{\frac{2 x^{8}}{3} + \frac{7 x^{6}}{6} + \frac{5 x^{4}}{2} + \frac{9 x^{2}}{2} + \left (\frac{x^{8}}{48} - \frac{5 x^{4}}{24} - \frac{x^{2}}{2} - \frac{5}{16}\right ) \log{\left (x^{2} + 1 \right )}^{3} + \left (- \frac{x^{8}}{12} + \frac{x^{6}}{24} + \frac{11 x^{4}}{8} + \frac{25 x^{2}}{8} + \frac{15}{8}\right ) \log{\left (x^{2} + 1 \right )}^{2} + \left (\frac{x^{8}}{4} - \frac{x^{6}}{6} - \frac{19 x^{4}}{6} - \frac{13 x^{2}}{2} - \frac{15}{4}\right ) \log{\left (x^{2} + 1 \right )} + \frac{5}{2}}{8 x^{7} \log{\left (x^{2} + 1 \right )}^{4} - 64 x^{7} \log{\left (x^{2} + 1 \right )}^{3} + 192 x^{7} \log{\left (x^{2} + 1 \right )}^{2} - 256 x^{7} \log{\left (x^{2} + 1 \right )} + 128 x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 0., size = 0, normalized size = 0. \begin{align*} \int -\frac{1}{{\left (\log \left (x^{2} + 1\right ) - 2\right )}^{5}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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