Optimal. Leaf size=27 \[ -\frac {a^2}{4 x^4}+\frac {b^2 x^4}{4}+2 a b \log (x) \]
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Rubi [A]
time = 0.01, antiderivative size = 27, 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 x^4}+2 a b \log (x)+\frac {b^2 x^4}{4} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 272
Rubi steps
\begin {align*} \int \frac {\left (a+b x^4\right )^2}{x^5} \, dx &=\frac {1}{4} \text {Subst}\left (\int \frac {(a+b x)^2}{x^2} \, dx,x,x^4\right )\\ &=\frac {1}{4} \text {Subst}\left (\int \left (b^2+\frac {a^2}{x^2}+\frac {2 a b}{x}\right ) \, dx,x,x^4\right )\\ &=-\frac {a^2}{4 x^4}+\frac {b^2 x^4}{4}+2 a b \log (x)\\ \end {align*}
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Mathematica [A]
time = 0.00, size = 27, normalized size = 1.00 \begin {gather*} -\frac {a^2}{4 x^4}+\frac {b^2 x^4}{4}+2 a b \log (x) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.14, size = 24, normalized size = 0.89
method | result | size |
default | \(-\frac {a^{2}}{4 x^{4}}+\frac {b^{2} x^{4}}{4}+2 a b \ln \left (x \right )\) | \(24\) |
risch | \(-\frac {a^{2}}{4 x^{4}}+\frac {b^{2} x^{4}}{4}+2 a b \ln \left (x \right )\) | \(24\) |
norman | \(\frac {-\frac {a^{2}}{4}+\frac {b^{2} x^{8}}{4}}{x^{4}}+2 a b \ln \left (x \right )\) | \(26\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 25, normalized size = 0.93 \begin {gather*} \frac {1}{4} \, b^{2} x^{4} + \frac {1}{2} \, a b \log \left (x^{4}\right ) - \frac {a^{2}}{4 \, x^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 27, normalized size = 1.00 \begin {gather*} \frac {b^{2} x^{8} + 8 \, a b x^{4} \log \left (x\right ) - a^{2}}{4 \, x^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.05, size = 24, normalized size = 0.89 \begin {gather*} - \frac {a^{2}}{4 x^{4}} + 2 a b \log {\left (x \right )} + \frac {b^{2} x^{4}}{4} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.51, size = 33, normalized size = 1.22 \begin {gather*} \frac {1}{4} \, b^{2} x^{4} + \frac {1}{2} \, a b \log \left (x^{4}\right ) - \frac {2 \, a b x^{4} + a^{2}}{4 \, x^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.03, size = 23, normalized size = 0.85 \begin {gather*} \frac {b^2\,x^4}{4}-\frac {a^2}{4\,x^4}+2\,a\,b\,\ln \left (x\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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