Optimal. Leaf size=156 \[ \text {RootSum}\left [\text {$\#$1}^8-4 \text {$\#$1}^6+4 \text {$\#$1}^4-2\& ,\frac {\log \left (\sqrt {\sqrt {\sqrt {x+1}+1}+1}-\text {$\#$1}\right )}{\text {$\#$1}}\& \right ]+\frac {-4 (-30 x-151)+\sqrt {x+1} \left (8-24 \sqrt {\sqrt {x+1}+1}\right )+64 \sqrt {\sqrt {x+1}+1}}{105 \sqrt {\sqrt {\sqrt {x+1}+1}+1}}+2 \sqrt {2} \tanh ^{-1}\left (\frac {\sqrt {\sqrt {\sqrt {x+1}+1}+1}}{\sqrt {2}}\right ) \]
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Rubi [F] time = 0.96, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {} \begin {gather*} \int \frac {1+x^2}{\left (-1+x^2\right ) \sqrt {1+\sqrt {1+\sqrt {1+x}}}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {1+x^2}{\left (-1+x^2\right ) \sqrt {1+\sqrt {1+\sqrt {1+x}}}} \, dx &=2 \operatorname {Subst}\left (\int \frac {2-2 x^2+x^4}{x \left (-2+x^2\right ) \sqrt {1+\sqrt {1+x}}} \, dx,x,\sqrt {1+x}\right )\\ &=4 \operatorname {Subst}\left (\int \frac {x+4 x^5-4 x^7+x^9}{\sqrt {1+x} \left (1+x^2-3 x^4+x^6\right )} \, dx,x,\sqrt {1+\sqrt {1+x}}\right )\\ &=8 \operatorname {Subst}\left (\int \frac {-1+x^2+4 \left (-1+x^2\right )^5-4 \left (-1+x^2\right )^7+\left (-1+x^2\right )^9}{1+\left (-1+x^2\right )^2-3 \left (-1+x^2\right )^4+\left (-1+x^2\right )^6} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )\\ &=8 \operatorname {Subst}\left (\int \left (-\frac {1}{2 x^2}+2 x^2-3 x^4+x^6-\frac {1}{2 \left (-2+x^2\right )}+\frac {x^2 \left (2-3 x^2+x^4\right )}{-2+4 x^4-4 x^6+x^8}\right ) \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )\\ &=\frac {4}{\sqrt {1+\sqrt {1+\sqrt {1+x}}}}+\frac {16}{3} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{3/2}-\frac {24}{5} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{5/2}+\frac {8}{7} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{7/2}-4 \operatorname {Subst}\left (\int \frac {1}{-2+x^2} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )+8 \operatorname {Subst}\left (\int \frac {x^2 \left (2-3 x^2+x^4\right )}{-2+4 x^4-4 x^6+x^8} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )\\ &=\frac {4}{\sqrt {1+\sqrt {1+\sqrt {1+x}}}}+\frac {16}{3} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{3/2}-\frac {24}{5} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{5/2}+\frac {8}{7} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{7/2}+2 \sqrt {2} \tanh ^{-1}\left (\frac {\sqrt {1+\sqrt {1+\sqrt {1+x}}}}{\sqrt {2}}\right )+8 \operatorname {Subst}\left (\int \left (\frac {2 x^2}{-2+4 x^4-4 x^6+x^8}-\frac {3 x^4}{-2+4 x^4-4 x^6+x^8}+\frac {x^6}{-2+4 x^4-4 x^6+x^8}\right ) \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )\\ &=\frac {4}{\sqrt {1+\sqrt {1+\sqrt {1+x}}}}+\frac {16}{3} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{3/2}-\frac {24}{5} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{5/2}+\frac {8}{7} \left (1+\sqrt {1+\sqrt {1+x}}\right )^{7/2}+2 \sqrt {2} \tanh ^{-1}\left (\frac {\sqrt {1+\sqrt {1+\sqrt {1+x}}}}{\sqrt {2}}\right )+8 \operatorname {Subst}\left (\int \frac {x^6}{-2+4 x^4-4 x^6+x^8} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )+16 \operatorname {Subst}\left (\int \frac {x^2}{-2+4 x^4-4 x^6+x^8} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )-24 \operatorname {Subst}\left (\int \frac {x^4}{-2+4 x^4-4 x^6+x^8} \, dx,x,\sqrt {1+\sqrt {1+\sqrt {1+x}}}\right )\\ \end {align*}
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Mathematica [A] time = 0.36, size = 302, normalized size = 1.94 \begin {gather*} 8 \left (\frac {1}{8} \text {RootSum}\left [2 \text {$\#$1}^8-4 \text {$\#$1}^4+4 \text {$\#$1}^2-1\&,\frac {2 \text {$\#$1}^4 \log \left (\frac {1}{\sqrt {\sqrt {\sqrt {x+1}+1}+1}}-\text {$\#$1}\right )-3 \text {$\#$1}^2 \log \left (\frac {1}{\sqrt {\sqrt {\sqrt {x+1}+1}+1}}-\text {$\#$1}\right )+\log \left (\frac {1}{\sqrt {\sqrt {\sqrt {x+1}+1}+1}}-\text {$\#$1}\right )}{2 \text {$\#$1}^7-2 \text {$\#$1}^3+\text {$\#$1}}\&\right ]+\frac {1}{7} \left (\sqrt {\sqrt {x+1}+1}+1\right )^{7/2}-\frac {3}{5} \left (\sqrt {\sqrt {x+1}+1}+1\right )^{5/2}+\frac {2}{3} \left (\sqrt {\sqrt {x+1}+1}+1\right )^{3/2}+\frac {1}{2 \sqrt {\sqrt {\sqrt {x+1}+1}+1}}-\frac {\log \left (\sqrt {2}-\frac {2}{\sqrt {\sqrt {\sqrt {x+1}+1}+1}}\right )}{4 \sqrt {2}}+\frac {\log \left (\frac {2}{\sqrt {\sqrt {\sqrt {x+1}+1}+1}}+\sqrt {2}\right )}{4 \sqrt {2}}\right ) \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.00, size = 153, normalized size = 0.98 \begin {gather*} \frac {-4 \sqrt {1+\sqrt {1+x}} \left (-16+6 \sqrt {1+x}\right )-4 \left (-121-2 \sqrt {1+x}-30 (1+x)\right )}{105 \sqrt {1+\sqrt {1+\sqrt {1+x}}}}+2 \sqrt {2} \tanh ^{-1}\left (\frac {\sqrt {1+\sqrt {1+\sqrt {1+x}}}}{\sqrt {2}}\right )+\text {RootSum}\left [-2+4 \text {$\#$1}^4-4 \text {$\#$1}^6+\text {$\#$1}^8\&,\frac {\log \left (\sqrt {1+\sqrt {1+\sqrt {1+x}}}-\text {$\#$1}\right )}{\text {$\#$1}}\&\right ] \end {gather*}
Antiderivative was successfully verified.
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fricas [B] time = 1.30, size = 2034, normalized size = 13.04
result too large to display
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 \begin {gather*} \int \frac {x^{2} + 1}{{\left (x^{2} - 1\right )} \sqrt {\sqrt {\sqrt {x + 1} + 1} + 1}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.17, size = 154, normalized size = 0.99
method | result | size |
derivativedivides | \(\frac {8 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {7}{2}}}{7}-\frac {24 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {5}{2}}}{5}+\frac {16 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {3}{2}}}{3}+\left (\munderset {\textit {\_R} =\RootOf \left (\textit {\_Z}^{8}-4 \textit {\_Z}^{6}+4 \textit {\_Z}^{4}-2\right )}{\sum }\frac {\left (\textit {\_R}^{6}-3 \textit {\_R}^{4}+2 \textit {\_R}^{2}\right ) \ln \left (\sqrt {1+\sqrt {1+\sqrt {1+x}}}-\textit {\_R} \right )}{\textit {\_R}^{7}-3 \textit {\_R}^{5}+2 \textit {\_R}^{3}}\right )+2 \sqrt {2}\, \arctanh \left (\frac {\sqrt {1+\sqrt {1+\sqrt {1+x}}}\, \sqrt {2}}{2}\right )+\frac {4}{\sqrt {1+\sqrt {1+\sqrt {1+x}}}}\) | \(154\) |
default | \(\frac {8 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {7}{2}}}{7}-\frac {24 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {5}{2}}}{5}+\frac {16 \left (1+\sqrt {1+\sqrt {1+x}}\right )^{\frac {3}{2}}}{3}+\left (\munderset {\textit {\_R} =\RootOf \left (\textit {\_Z}^{8}-4 \textit {\_Z}^{6}+4 \textit {\_Z}^{4}-2\right )}{\sum }\frac {\left (\textit {\_R}^{6}-3 \textit {\_R}^{4}+2 \textit {\_R}^{2}\right ) \ln \left (\sqrt {1+\sqrt {1+\sqrt {1+x}}}-\textit {\_R} \right )}{\textit {\_R}^{7}-3 \textit {\_R}^{5}+2 \textit {\_R}^{3}}\right )+2 \sqrt {2}\, \arctanh \left (\frac {\sqrt {1+\sqrt {1+\sqrt {1+x}}}\, \sqrt {2}}{2}\right )+\frac {4}{\sqrt {1+\sqrt {1+\sqrt {1+x}}}}\) | \(154\) |
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 \begin {gather*} \int \frac {x^{2} + 1}{{\left (x^{2} - 1\right )} \sqrt {\sqrt {\sqrt {x + 1} + 1} + 1}}\,{d x} \end {gather*}
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 \begin {gather*} \int \frac {x^2+1}{\left (x^2-1\right )\,\sqrt {\sqrt {\sqrt {x+1}+1}+1}} \,d x \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^{2} + 1}{\left (x - 1\right ) \left (x + 1\right ) \sqrt {\sqrt {\sqrt {x + 1} + 1} + 1}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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