Optimal. Leaf size=36 \[ -\frac {\, _2F_1\left (1,-\frac {2}{n};-\frac {2-n}{n};-\frac {b x^n}{a}\right )}{2 a x^2} \]
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Rubi [A] time = 0.01, antiderivative size = 36, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {364} \[ -\frac {\, _2F_1\left (1,-\frac {2}{n};-\frac {2-n}{n};-\frac {b x^n}{a}\right )}{2 a x^2} \]
Antiderivative was successfully verified.
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Rule 364
Rubi steps
\begin {align*} \int \frac {1}{x^3 \left (a+b x^n\right )} \, dx &=-\frac {\, _2F_1\left (1,-\frac {2}{n};-\frac {2-n}{n};-\frac {b x^n}{a}\right )}{2 a x^2}\\ \end {align*}
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Mathematica [A] time = 0.00, size = 33, normalized size = 0.92 \[ -\frac {\, _2F_1\left (1,-\frac {2}{n};1-\frac {2}{n};-\frac {b x^n}{a}\right )}{2 a x^2} \]
Antiderivative was successfully verified.
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fricas [F] time = 0.62, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\frac {1}{b x^{3} x^{n} + a x^{3}}, x\right ) \]
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 \[ \int \frac {1}{{\left (b x^{n} + a\right )} x^{3}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.24, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (b \,x^{n}+a \right ) x^{3}}\, dx \]
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 \[ \int \frac {1}{{\left (b x^{n} + a\right )} x^{3}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.03 \[ \int \frac {1}{x^3\,\left (a+b\,x^n\right )} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [C] time = 1.00, size = 44, normalized size = 1.22 \[ - \frac {2 \Phi \left (\frac {b x^{n} e^{i \pi }}{a}, 1, \frac {2 e^{i \pi }}{n}\right ) \Gamma \left (- \frac {2}{n}\right )}{a n^{2} x^{2} \Gamma \left (1 - \frac {2}{n}\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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