Optimal. Leaf size=88 \[ a^{3/4} \tan ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )+a^{3/4} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )+\frac {\left (a x^4-b\right )^{3/4} \left (-4 a x^4-3 b\right )}{7 b x^7} \]
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Rubi [A] time = 0.06, antiderivative size = 99, normalized size of antiderivative = 1.12, number of steps used = 8, number of rules used = 7, integrand size = 27, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.259, Rules used = {1489, 240, 212, 206, 203, 271, 264} \begin {gather*} a^{3/4} \tan ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )+a^{3/4} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )-\frac {3 \left (a x^4-b\right )^{3/4}}{7 x^7}-\frac {4 a \left (a x^4-b\right )^{3/4}}{7 b x^3} \end {gather*}
Antiderivative was successfully verified.
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Rule 203
Rule 206
Rule 212
Rule 240
Rule 264
Rule 271
Rule 1489
Rubi steps
\begin {align*} \int \frac {-3 b+2 a x^8}{x^8 \sqrt [4]{-b+a x^4}} \, dx &=\int \left (\frac {2 a}{\sqrt [4]{-b+a x^4}}-\frac {3 b}{x^8 \sqrt [4]{-b+a x^4}}\right ) \, dx\\ &=(2 a) \int \frac {1}{\sqrt [4]{-b+a x^4}} \, dx-(3 b) \int \frac {1}{x^8 \sqrt [4]{-b+a x^4}} \, dx\\ &=-\frac {3 \left (-b+a x^4\right )^{3/4}}{7 x^7}-\frac {1}{7} (12 a) \int \frac {1}{x^4 \sqrt [4]{-b+a x^4}} \, dx+(2 a) \operatorname {Subst}\left (\int \frac {1}{1-a x^4} \, dx,x,\frac {x}{\sqrt [4]{-b+a x^4}}\right )\\ &=-\frac {3 \left (-b+a x^4\right )^{3/4}}{7 x^7}-\frac {4 a \left (-b+a x^4\right )^{3/4}}{7 b x^3}+a \operatorname {Subst}\left (\int \frac {1}{1-\sqrt {a} x^2} \, dx,x,\frac {x}{\sqrt [4]{-b+a x^4}}\right )+a \operatorname {Subst}\left (\int \frac {1}{1+\sqrt {a} x^2} \, dx,x,\frac {x}{\sqrt [4]{-b+a x^4}}\right )\\ &=-\frac {3 \left (-b+a x^4\right )^{3/4}}{7 x^7}-\frac {4 a \left (-b+a x^4\right )^{3/4}}{7 b x^3}+a^{3/4} \tan ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b+a x^4}}\right )+a^{3/4} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b+a x^4}}\right )\\ \end {align*}
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Mathematica [A] time = 0.08, size = 88, normalized size = 1.00 \begin {gather*} a^{3/4} \tan ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )+a^{3/4} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{a x^4-b}}\right )-\frac {\left (a x^4-b\right )^{3/4} \left (4 a x^4+3 b\right )}{7 b x^7} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.39, size = 88, normalized size = 1.00 \begin {gather*} \frac {\left (-3 b-4 a x^4\right ) \left (-b+a x^4\right )^{3/4}}{7 b x^7}+a^{3/4} \tan ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b+a x^4}}\right )+a^{3/4} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b+a x^4}}\right ) \end {gather*}
Antiderivative was successfully verified.
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fricas [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \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*} \int \frac {2 \, a x^{8} - 3 \, b}{{\left (a x^{4} - b\right )}^{\frac {1}{4}} x^{8}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.01, size = 0, normalized size = 0.00 \[\int \frac {2 a \,x^{8}-3 b}{x^{8} \left (a \,x^{4}-b \right )^{\frac {1}{4}}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.43, size = 116, normalized size = 1.32 \begin {gather*} -\frac {1}{2} \, a {\left (\frac {2 \, \arctan \left (\frac {{\left (a x^{4} - b\right )}^{\frac {1}{4}}}{a^{\frac {1}{4}} x}\right )}{a^{\frac {1}{4}}} + \frac {\log \left (-\frac {a^{\frac {1}{4}} - \frac {{\left (a x^{4} - b\right )}^{\frac {1}{4}}}{x}}{a^{\frac {1}{4}} + \frac {{\left (a x^{4} - b\right )}^{\frac {1}{4}}}{x}}\right )}{a^{\frac {1}{4}}}\right )} - \frac {\frac {7 \, {\left (a x^{4} - b\right )}^{\frac {3}{4}} a}{x^{3}} - \frac {3 \, {\left (a x^{4} - b\right )}^{\frac {7}{4}}}{x^{7}}}{7 \, b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.30, size = 71, normalized size = 0.81 \begin {gather*} \frac {2\,a\,x\,{\left (1-\frac {a\,x^4}{b}\right )}^{1/4}\,{{}}_2{\mathrm {F}}_1\left (\frac {1}{4},\frac {1}{4};\ \frac {5}{4};\ \frac {a\,x^4}{b}\right )}{{\left (a\,x^4-b\right )}^{1/4}}-\frac {{\left (a\,x^4-b\right )}^{3/4}\,\left (4\,a\,x^4+3\,b\right )}{7\,b\,x^7} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [C] time = 2.52, size = 320, normalized size = 3.64 \begin {gather*} \frac {a x e^{- \frac {i \pi }{4}} \Gamma \left (\frac {1}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{4}, \frac {1}{4} \\ \frac {5}{4} \end {matrix}\middle | {\frac {a x^{4}}{b}} \right )}}{2 \sqrt [4]{b} \Gamma \left (\frac {5}{4}\right )} - 3 b \left (\begin {cases} - \frac {a^{\frac {7}{4}} \left (-1 + \frac {b}{a x^{4}}\right )^{\frac {3}{4}} e^{- \frac {i \pi }{4}} \Gamma \left (- \frac {7}{4}\right )}{4 b^{2} \Gamma \left (\frac {1}{4}\right )} - \frac {3 a^{\frac {3}{4}} \left (-1 + \frac {b}{a x^{4}}\right )^{\frac {3}{4}} e^{- \frac {i \pi }{4}} \Gamma \left (- \frac {7}{4}\right )}{16 b x^{4} \Gamma \left (\frac {1}{4}\right )} & \text {for}\: \left |{\frac {b}{a x^{4}}}\right | > 1 \\\frac {4 a^{\frac {15}{4}} x^{8} \left (1 - \frac {b}{a x^{4}}\right )^{\frac {3}{4}} \Gamma \left (- \frac {7}{4}\right )}{16 a^{2} b^{2} x^{8} \Gamma \left (\frac {1}{4}\right ) - 16 a b^{3} x^{4} \Gamma \left (\frac {1}{4}\right )} - \frac {a^{\frac {11}{4}} b x^{4} \left (1 - \frac {b}{a x^{4}}\right )^{\frac {3}{4}} \Gamma \left (- \frac {7}{4}\right )}{16 a^{2} b^{2} x^{8} \Gamma \left (\frac {1}{4}\right ) - 16 a b^{3} x^{4} \Gamma \left (\frac {1}{4}\right )} - \frac {3 a^{\frac {7}{4}} b^{2} \left (1 - \frac {b}{a x^{4}}\right )^{\frac {3}{4}} \Gamma \left (- \frac {7}{4}\right )}{16 a^{2} b^{2} x^{8} \Gamma \left (\frac {1}{4}\right ) - 16 a b^{3} x^{4} \Gamma \left (\frac {1}{4}\right )} & \text {otherwise} \end {cases}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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