Optimal. Leaf size=46 \[ \frac {x^4}{4 c^2}-\frac {a^2}{4 c^3 \left (a+c x^4\right )}-\frac {a \log \left (a+c x^4\right )}{2 c^3} \]
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Rubi [A]
time = 0.02, antiderivative size = 46, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {272, 45}
\begin {gather*} -\frac {a^2}{4 c^3 \left (a+c x^4\right )}-\frac {a \log \left (a+c x^4\right )}{2 c^3}+\frac {x^4}{4 c^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 272
Rubi steps
\begin {align*} \int \frac {x^{11}}{\left (a+c x^4\right )^2} \, dx &=\frac {1}{4} \text {Subst}\left (\int \frac {x^2}{(a+c x)^2} \, dx,x,x^4\right )\\ &=\frac {1}{4} \text {Subst}\left (\int \left (\frac {1}{c^2}+\frac {a^2}{c^2 (a+c x)^2}-\frac {2 a}{c^2 (a+c x)}\right ) \, dx,x,x^4\right )\\ &=\frac {x^4}{4 c^2}-\frac {a^2}{4 c^3 \left (a+c x^4\right )}-\frac {a \log \left (a+c x^4\right )}{2 c^3}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 38, normalized size = 0.83 \begin {gather*} \frac {c x^4-\frac {a^2}{a+c x^4}-2 a \log \left (a+c x^4\right )}{4 c^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.14, size = 44, normalized size = 0.96
method | result | size |
risch | \(\frac {x^{4}}{4 c^{2}}-\frac {a^{2}}{4 c^{3} \left (x^{4} c +a \right )}-\frac {a \ln \left (x^{4} c +a \right )}{2 c^{3}}\) | \(41\) |
norman | \(\frac {\frac {x^{8}}{4 c}-\frac {a^{2}}{2 c^{3}}}{x^{4} c +a}-\frac {a \ln \left (x^{4} c +a \right )}{2 c^{3}}\) | \(43\) |
default | \(\frac {x^{4}}{4 c^{2}}-\frac {a \left (\frac {a}{2 c \left (x^{4} c +a \right )}+\frac {\ln \left (x^{4} c +a \right )}{c}\right )}{2 c^{2}}\) | \(44\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 43, normalized size = 0.93 \begin {gather*} \frac {x^{4}}{4 \, c^{2}} - \frac {a^{2}}{4 \, {\left (c^{4} x^{4} + a c^{3}\right )}} - \frac {a \log \left (c x^{4} + a\right )}{2 \, c^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 56, normalized size = 1.22 \begin {gather*} \frac {c^{2} x^{8} + a c x^{4} - a^{2} - 2 \, {\left (a c x^{4} + a^{2}\right )} \log \left (c x^{4} + a\right )}{4 \, {\left (c^{4} x^{4} + a c^{3}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.16, size = 41, normalized size = 0.89 \begin {gather*} - \frac {a^{2}}{4 a c^{3} + 4 c^{4} x^{4}} - \frac {a \log {\left (a + c x^{4} \right )}}{2 c^{3}} + \frac {x^{4}}{4 c^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.52, size = 49, normalized size = 1.07 \begin {gather*} \frac {x^{4}}{4 \, c^{2}} - \frac {a \log \left ({\left | c x^{4} + a \right |}\right )}{2 \, c^{3}} + \frac {2 \, a c x^{4} + a^{2}}{4 \, {\left (c x^{4} + a\right )} c^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.99, size = 45, normalized size = 0.98 \begin {gather*} \frac {x^4}{4\,c^2}-\frac {a^2}{4\,\left (c^4\,x^4+a\,c^3\right )}-\frac {a\,\ln \left (c\,x^4+a\right )}{2\,c^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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