Optimal. Leaf size=84 \[ -\frac {a^3 \left (a-b x^4\right )^{5/4}}{5 b^4}+\frac {a^2 \left (a-b x^4\right )^{9/4}}{3 b^4}-\frac {3 a \left (a-b x^4\right )^{13/4}}{13 b^4}+\frac {\left (a-b x^4\right )^{17/4}}{17 b^4} \]
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Rubi [A]
time = 0.03, 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 = {272, 45}
\begin {gather*} -\frac {a^3 \left (a-b x^4\right )^{5/4}}{5 b^4}+\frac {a^2 \left (a-b x^4\right )^{9/4}}{3 b^4}+\frac {\left (a-b x^4\right )^{17/4}}{17 b^4}-\frac {3 a \left (a-b x^4\right )^{13/4}}{13 b^4} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 272
Rubi steps
\begin {align*} \int x^{15} \sqrt [4]{a-b x^4} \, dx &=\frac {1}{4} \text {Subst}\left (\int x^3 \sqrt [4]{a-b x} \, dx,x,x^4\right )\\ &=\frac {1}{4} \text {Subst}\left (\int \left (\frac {a^3 \sqrt [4]{a-b x}}{b^3}-\frac {3 a^2 (a-b x)^{5/4}}{b^3}+\frac {3 a (a-b x)^{9/4}}{b^3}-\frac {(a-b x)^{13/4}}{b^3}\right ) \, dx,x,x^4\right )\\ &=-\frac {a^3 \left (a-b x^4\right )^{5/4}}{5 b^4}+\frac {a^2 \left (a-b x^4\right )^{9/4}}{3 b^4}-\frac {3 a \left (a-b x^4\right )^{13/4}}{13 b^4}+\frac {\left (a-b x^4\right )^{17/4}}{17 b^4}\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 62, normalized size = 0.74 \begin {gather*} \frac {\sqrt [4]{a-b x^4} \left (-128 a^4-32 a^3 b x^4-20 a^2 b^2 x^8-15 a b^3 x^{12}+195 b^4 x^{16}\right )}{3315 b^4} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.16, size = 48, normalized size = 0.57
method | result | size |
gosper | \(-\frac {\left (-b \,x^{4}+a \right )^{\frac {5}{4}} \left (195 b^{3} x^{12}+180 a \,b^{2} x^{8}+160 a^{2} b \,x^{4}+128 a^{3}\right )}{3315 b^{4}}\) | \(48\) |
trager | \(-\frac {\left (-195 x^{16} b^{4}+15 a \,b^{3} x^{12}+20 a^{2} b^{2} x^{8}+32 a^{3} b \,x^{4}+128 a^{4}\right ) \left (-b \,x^{4}+a \right )^{\frac {1}{4}}}{3315 b^{4}}\) | \(59\) |
risch | \(-\frac {\left (-b \,x^{4}+a \right )^{\frac {1}{4}} \left (\left (-b \,x^{4}+a \right )^{3}\right )^{\frac {1}{4}} \left (-195 x^{16} b^{4}+15 a \,b^{3} x^{12}+20 a^{2} b^{2} x^{8}+32 a^{3} b \,x^{4}+128 a^{4}\right )}{3315 b^{4} \left (-\left (b \,x^{4}-a \right )^{3}\right )^{\frac {1}{4}}}\) | \(86\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.30, size = 68, normalized size = 0.81 \begin {gather*} \frac {{\left (-b x^{4} + a\right )}^{\frac {17}{4}}}{17 \, b^{4}} - \frac {3 \, {\left (-b x^{4} + a\right )}^{\frac {13}{4}} a}{13 \, b^{4}} + \frac {{\left (-b x^{4} + a\right )}^{\frac {9}{4}} a^{2}}{3 \, b^{4}} - \frac {{\left (-b x^{4} + a\right )}^{\frac {5}{4}} a^{3}}{5 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.39, size = 58, normalized size = 0.69 \begin {gather*} \frac {{\left (195 \, b^{4} x^{16} - 15 \, a b^{3} x^{12} - 20 \, a^{2} b^{2} x^{8} - 32 \, a^{3} b x^{4} - 128 \, a^{4}\right )} {\left (-b x^{4} + a\right )}^{\frac {1}{4}}}{3315 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.69, size = 110, normalized size = 1.31 \begin {gather*} \begin {cases} - \frac {128 a^{4} \sqrt [4]{a - b x^{4}}}{3315 b^{4}} - \frac {32 a^{3} x^{4} \sqrt [4]{a - b x^{4}}}{3315 b^{3}} - \frac {4 a^{2} x^{8} \sqrt [4]{a - b x^{4}}}{663 b^{2}} - \frac {a x^{12} \sqrt [4]{a - b x^{4}}}{221 b} + \frac {x^{16} \sqrt [4]{a - b x^{4}}}{17} & \text {for}\: b \neq 0 \\\frac {\sqrt [4]{a} x^{16}}{16} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.15, size = 94, normalized size = 1.12 \begin {gather*} \frac {195 \, {\left (b x^{4} - a\right )}^{4} {\left (-b x^{4} + a\right )}^{\frac {1}{4}} + 765 \, {\left (b x^{4} - a\right )}^{3} {\left (-b x^{4} + a\right )}^{\frac {1}{4}} a + 1105 \, {\left (b x^{4} - a\right )}^{2} {\left (-b x^{4} + a\right )}^{\frac {1}{4}} a^{2} - 663 \, {\left (-b x^{4} + a\right )}^{\frac {5}{4}} a^{3}}{3315 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.12, size = 57, normalized size = 0.68 \begin {gather*} -{\left (a-b\,x^4\right )}^{1/4}\,\left (\frac {128\,a^4}{3315\,b^4}-\frac {x^{16}}{17}+\frac {a\,x^{12}}{221\,b}+\frac {32\,a^3\,x^4}{3315\,b^3}+\frac {4\,a^2\,x^8}{663\,b^2}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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