Optimal. Leaf size=57 \[ -\frac {a^2}{b^3 \sqrt [4]{a+b x^4}}-\frac {2 a \left (a+b x^4\right )^{3/4}}{3 b^3}+\frac {\left (a+b x^4\right )^{7/4}}{7 b^3} \]
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Rubi [A]
time = 0.03, antiderivative size = 57, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {272, 45}
\begin {gather*} -\frac {a^2}{b^3 \sqrt [4]{a+b x^4}}-\frac {2 a \left (a+b x^4\right )^{3/4}}{3 b^3}+\frac {\left (a+b x^4\right )^{7/4}}{7 b^3} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 272
Rubi steps
\begin {align*} \int \frac {x^{11}}{\left (a+b x^4\right )^{5/4}} \, dx &=\frac {1}{4} \text {Subst}\left (\int \frac {x^2}{(a+b x)^{5/4}} \, dx,x,x^4\right )\\ &=\frac {1}{4} \text {Subst}\left (\int \left (\frac {a^2}{b^2 (a+b x)^{5/4}}-\frac {2 a}{b^2 \sqrt [4]{a+b x}}+\frac {(a+b x)^{3/4}}{b^2}\right ) \, dx,x,x^4\right )\\ &=-\frac {a^2}{b^3 \sqrt [4]{a+b x^4}}-\frac {2 a \left (a+b x^4\right )^{3/4}}{3 b^3}+\frac {\left (a+b x^4\right )^{7/4}}{7 b^3}\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 39, normalized size = 0.68 \begin {gather*} \frac {-32 a^2-8 a b x^4+3 b^2 x^8}{21 b^3 \sqrt [4]{a+b x^4}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.16, size = 36, normalized size = 0.63
method | result | size |
gosper | \(-\frac {-3 b^{2} x^{8}+8 a b \,x^{4}+32 a^{2}}{21 \left (b \,x^{4}+a \right )^{\frac {1}{4}} b^{3}}\) | \(36\) |
trager | \(-\frac {-3 b^{2} x^{8}+8 a b \,x^{4}+32 a^{2}}{21 \left (b \,x^{4}+a \right )^{\frac {1}{4}} b^{3}}\) | \(36\) |
risch | \(-\frac {\left (-3 b \,x^{4}+11 a \right ) \left (b \,x^{4}+a \right )^{\frac {3}{4}}}{21 b^{3}}-\frac {a^{2}}{b^{3} \left (b \,x^{4}+a \right )^{\frac {1}{4}}}\) | \(43\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.30, size = 47, normalized size = 0.82 \begin {gather*} \frac {{\left (b x^{4} + a\right )}^{\frac {7}{4}}}{7 \, b^{3}} - \frac {2 \, {\left (b x^{4} + a\right )}^{\frac {3}{4}} a}{3 \, b^{3}} - \frac {a^{2}}{{\left (b x^{4} + a\right )}^{\frac {1}{4}} b^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.35, size = 47, normalized size = 0.82 \begin {gather*} \frac {{\left (3 \, b^{2} x^{8} - 8 \, a b x^{4} - 32 \, a^{2}\right )} {\left (b x^{4} + a\right )}^{\frac {3}{4}}}{21 \, {\left (b^{4} x^{4} + a b^{3}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.54, size = 68, normalized size = 1.19 \begin {gather*} \begin {cases} - \frac {32 a^{2}}{21 b^{3} \sqrt [4]{a + b x^{4}}} - \frac {8 a x^{4}}{21 b^{2} \sqrt [4]{a + b x^{4}}} + \frac {x^{8}}{7 b \sqrt [4]{a + b x^{4}}} & \text {for}\: b \neq 0 \\\frac {x^{12}}{12 a^{\frac {5}{4}}} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.99, size = 53, normalized size = 0.93 \begin {gather*} -\frac {a^{2}}{{\left (b x^{4} + a\right )}^{\frac {1}{4}} b^{3}} + \frac {3 \, {\left (b x^{4} + a\right )}^{\frac {7}{4}} b^{18} - 14 \, {\left (b x^{4} + a\right )}^{\frac {3}{4}} a b^{18}}{21 \, b^{21}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.21, size = 39, normalized size = 0.68 \begin {gather*} -\frac {\frac {2\,a\,\left (b\,x^4+a\right )}{3}-\frac {{\left (b\,x^4+a\right )}^2}{7}+a^2}{b^3\,{\left (b\,x^4+a\right )}^{1/4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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