Optimal. Leaf size=84 \[ -\frac {a^3 \left (a-b x^4\right )^{3/4}}{3 b^4}+\frac {3 a^2 \left (a-b x^4\right )^{7/4}}{7 b^4}+\frac {\left (a-b x^4\right )^{15/4}}{15 b^4}-\frac {3 a \left (a-b x^4\right )^{11/4}}{11 b^4} \]
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Rubi [A] time = 0.05, antiderivative size = 84, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {266, 43} \[ \frac {3 a^2 \left (a-b x^4\right )^{7/4}}{7 b^4}-\frac {a^3 \left (a-b x^4\right )^{3/4}}{3 b^4}+\frac {\left (a-b x^4\right )^{15/4}}{15 b^4}-\frac {3 a \left (a-b x^4\right )^{11/4}}{11 b^4} \]
Antiderivative was successfully verified.
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Rule 43
Rule 266
Rubi steps
\begin {align*} \int \frac {x^{15}}{\sqrt [4]{a-b x^4}} \, dx &=\frac {1}{4} \operatorname {Subst}\left (\int \frac {x^3}{\sqrt [4]{a-b x}} \, dx,x,x^4\right )\\ &=\frac {1}{4} \operatorname {Subst}\left (\int \left (\frac {a^3}{b^3 \sqrt [4]{a-b x}}-\frac {3 a^2 (a-b x)^{3/4}}{b^3}+\frac {3 a (a-b x)^{7/4}}{b^3}-\frac {(a-b x)^{11/4}}{b^3}\right ) \, dx,x,x^4\right )\\ &=-\frac {a^3 \left (a-b x^4\right )^{3/4}}{3 b^4}+\frac {3 a^2 \left (a-b x^4\right )^{7/4}}{7 b^4}-\frac {3 a \left (a-b x^4\right )^{11/4}}{11 b^4}+\frac {\left (a-b x^4\right )^{15/4}}{15 b^4}\\ \end {align*}
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Mathematica [A] time = 0.03, size = 51, normalized size = 0.61 \[ -\frac {\left (a-b x^4\right )^{3/4} \left (128 a^3+96 a^2 b x^4+84 a b^2 x^8+77 b^3 x^{12}\right )}{1155 b^4} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.60, size = 47, normalized size = 0.56 \[ -\frac {{\left (77 \, b^{3} x^{12} + 84 \, a b^{2} x^{8} + 96 \, a^{2} b x^{4} + 128 \, a^{3}\right )} {\left (-b x^{4} + a\right )}^{\frac {3}{4}}}{1155 \, b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.16, size = 83, normalized size = 0.99 \[ -\frac {77 \, {\left (b x^{4} - a\right )}^{3} {\left (-b x^{4} + a\right )}^{\frac {3}{4}} + 315 \, {\left (b x^{4} - a\right )}^{2} {\left (-b x^{4} + a\right )}^{\frac {3}{4}} a - 495 \, {\left (-b x^{4} + a\right )}^{\frac {7}{4}} a^{2} + 385 \, {\left (-b x^{4} + a\right )}^{\frac {3}{4}} a^{3}}{1155 \, b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 48, normalized size = 0.57 \[ -\frac {\left (-b \,x^{4}+a \right )^{\frac {3}{4}} \left (77 b^{3} x^{12}+84 a \,b^{2} x^{8}+96 a^{2} b \,x^{4}+128 a^{3}\right )}{1155 b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.33, size = 68, normalized size = 0.81 \[ \frac {{\left (-b x^{4} + a\right )}^{\frac {15}{4}}}{15 \, b^{4}} - \frac {3 \, {\left (-b x^{4} + a\right )}^{\frac {11}{4}} a}{11 \, b^{4}} + \frac {3 \, {\left (-b x^{4} + a\right )}^{\frac {7}{4}} a^{2}}{7 \, b^{4}} - \frac {{\left (-b x^{4} + a\right )}^{\frac {3}{4}} a^{3}}{3 \, b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.17, size = 49, normalized size = 0.58 \[ -{\left (a-b\,x^4\right )}^{3/4}\,\left (\frac {128\,a^3}{1155\,b^4}+\frac {x^{12}}{15\,b}+\frac {4\,a\,x^8}{55\,b^2}+\frac {32\,a^2\,x^4}{385\,b^3}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 9.90, size = 94, normalized size = 1.12 \[ \begin {cases} - \frac {128 a^{3} \left (a - b x^{4}\right )^{\frac {3}{4}}}{1155 b^{4}} - \frac {32 a^{2} x^{4} \left (a - b x^{4}\right )^{\frac {3}{4}}}{385 b^{3}} - \frac {4 a x^{8} \left (a - b x^{4}\right )^{\frac {3}{4}}}{55 b^{2}} - \frac {x^{12} \left (a - b x^{4}\right )^{\frac {3}{4}}}{15 b} & \text {for}\: b \neq 0 \\\frac {x^{16}}{16 \sqrt [4]{a}} & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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