Optimal. Leaf size=44 \[ \frac{f^{a+\frac{b}{x^2}}}{2 b^2 \log ^2(f)}-\frac{f^{a+\frac{b}{x^2}}}{2 b x^2 \log (f)} \]
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Rubi [A] time = 0.0451656, antiderivative size = 44, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.154, Rules used = {2212, 2209} \[ \frac{f^{a+\frac{b}{x^2}}}{2 b^2 \log ^2(f)}-\frac{f^{a+\frac{b}{x^2}}}{2 b x^2 \log (f)} \]
Antiderivative was successfully verified.
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Rule 2212
Rule 2209
Rubi steps
\begin{align*} \int \frac{f^{a+\frac{b}{x^2}}}{x^5} \, dx &=-\frac{f^{a+\frac{b}{x^2}}}{2 b x^2 \log (f)}-\frac{\int \frac{f^{a+\frac{b}{x^2}}}{x^3} \, dx}{b \log (f)}\\ &=\frac{f^{a+\frac{b}{x^2}}}{2 b^2 \log ^2(f)}-\frac{f^{a+\frac{b}{x^2}}}{2 b x^2 \log (f)}\\ \end{align*}
Mathematica [A] time = 0.0069059, size = 32, normalized size = 0.73 \[ \frac{f^{a+\frac{b}{x^2}} \left (x^2-b \log (f)\right )}{2 b^2 x^2 \log ^2(f)} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.011, size = 52, normalized size = 1.2 \begin{align*}{\frac{1}{{x}^{4}} \left ({\frac{{x}^{4}}{2\, \left ( \ln \left ( f \right ) \right ) ^{2}{b}^{2}}{{\rm e}^{ \left ( a+{\frac{b}{{x}^{2}}} \right ) \ln \left ( f \right ) }}}-{\frac{{x}^{2}}{2\,b\ln \left ( f \right ) }{{\rm e}^{ \left ( a+{\frac{b}{{x}^{2}}} \right ) \ln \left ( f \right ) }}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [C] time = 1.17494, size = 30, normalized size = 0.68 \begin{align*} \frac{f^{a} \Gamma \left (2, -\frac{b \log \left (f\right )}{x^{2}}\right )}{2 \, b^{2} \log \left (f\right )^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.66412, size = 82, normalized size = 1.86 \begin{align*} \frac{{\left (x^{2} - b \log \left (f\right )\right )} f^{\frac{a x^{2} + b}{x^{2}}}}{2 \, b^{2} x^{2} \log \left (f\right )^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.122252, size = 29, normalized size = 0.66 \begin{align*} \frac{f^{a + \frac{b}{x^{2}}} \left (- b \log{\left (f \right )} + x^{2}\right )}{2 b^{2} x^{2} \log{\left (f \right )}^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{f^{a + \frac{b}{x^{2}}}}{x^{5}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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