Optimal. Leaf size=97 \[ \frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}+\frac {3 \sqrt {a} \sqrt {b} \sqrt [4]{1+\frac {a}{b x^4}} x E\left (\left .\frac {1}{2} \cot ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a}}\right )\right |2\right )}{2 \sqrt [4]{a+b x^4}} \]
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Rubi [A]
time = 0.03, antiderivative size = 97, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.400, Rules used = {283, 316, 287,
342, 281, 202} \begin {gather*} -\frac {\left (a+b x^4\right )^{3/4}}{x}+\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}+\frac {3 \sqrt {a} \sqrt {b} x \sqrt [4]{\frac {a}{b x^4}+1} E\left (\left .\frac {1}{2} \cot ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a}}\right )\right |2\right )}{2 \sqrt [4]{a+b x^4}} \end {gather*}
Antiderivative was successfully verified.
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Rule 202
Rule 281
Rule 283
Rule 287
Rule 316
Rule 342
Rubi steps
\begin {align*} \int \frac {\left (a+b x^4\right )^{3/4}}{x^2} \, dx &=-\frac {\left (a+b x^4\right )^{3/4}}{x}+(3 b) \int \frac {x^2}{\sqrt [4]{a+b x^4}} \, dx\\ &=\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}-\frac {1}{2} (3 a b) \int \frac {x^2}{\left (a+b x^4\right )^{5/4}} \, dx\\ &=\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}-\frac {\left (3 a \sqrt [4]{1+\frac {a}{b x^4}} x\right ) \int \frac {1}{\left (1+\frac {a}{b x^4}\right )^{5/4} x^3} \, dx}{2 \sqrt [4]{a+b x^4}}\\ &=\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}+\frac {\left (3 a \sqrt [4]{1+\frac {a}{b x^4}} x\right ) \text {Subst}\left (\int \frac {x}{\left (1+\frac {a x^4}{b}\right )^{5/4}} \, dx,x,\frac {1}{x}\right )}{2 \sqrt [4]{a+b x^4}}\\ &=\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}+\frac {\left (3 a \sqrt [4]{1+\frac {a}{b x^4}} x\right ) \text {Subst}\left (\int \frac {1}{\left (1+\frac {a x^2}{b}\right )^{5/4}} \, dx,x,\frac {1}{x^2}\right )}{4 \sqrt [4]{a+b x^4}}\\ &=\frac {3 b x^3}{2 \sqrt [4]{a+b x^4}}-\frac {\left (a+b x^4\right )^{3/4}}{x}+\frac {3 \sqrt {a} \sqrt {b} \sqrt [4]{1+\frac {a}{b x^4}} x E\left (\left .\frac {1}{2} \cot ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a}}\right )\right |2\right )}{2 \sqrt [4]{a+b x^4}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 10.02, size = 49, normalized size = 0.51 \begin {gather*} -\frac {\left (a+b x^4\right )^{3/4} \, _2F_1\left (-\frac {3}{4},-\frac {1}{4};\frac {3}{4};-\frac {b x^4}{a}\right )}{x \left (1+\frac {b x^4}{a}\right )^{3/4}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.00, size = 0, normalized size = 0.00 \[\int \frac {\left (b \,x^{4}+a \right )^{\frac {3}{4}}}{x^{2}}\, dx\]
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 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F]
time = 0.09, size = 15, normalized size = 0.15 \begin {gather*} {\rm integral}\left (\frac {{\left (b x^{4} + a\right )}^{\frac {3}{4}}}{x^{2}}, x\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 0.49, size = 41, normalized size = 0.42 \begin {gather*} \frac {a^{\frac {3}{4}} \Gamma \left (- \frac {1}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {3}{4}, - \frac {1}{4} \\ \frac {3}{4} \end {matrix}\middle | {\frac {b x^{4} e^{i \pi }}{a}} \right )}}{4 x \Gamma \left (\frac {3}{4}\right )} \end {gather*}
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*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.35, size = 40, normalized size = 0.41 \begin {gather*} \frac {{\left (b\,x^4+a\right )}^{3/4}\,{{}}_2{\mathrm {F}}_1\left (-\frac {3}{4},-\frac {1}{2};\ \frac {1}{2};\ -\frac {a}{b\,x^4}\right )}{2\,x\,{\left (\frac {a}{b\,x^4}+1\right )}^{3/4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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