Optimal. Leaf size=19 \[ -\frac {\left (a+b x^3\right )^9}{27 a x^{27}} \]
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Rubi [A]
time = 0.00, antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps
used = 1, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {270}
\begin {gather*} -\frac {\left (a+b x^3\right )^9}{27 a x^{27}} \end {gather*}
Antiderivative was successfully verified.
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Rule 270
Rubi steps
\begin {align*} \int \frac {\left (a+b x^3\right )^8}{x^{28}} \, dx &=-\frac {\left (a+b x^3\right )^9}{27 a x^{27}}\\ \end {align*}
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Mathematica [B] Leaf count is larger than twice the leaf count of optimal. \(108\) vs. \(2(19)=38\).
time = 0.01, size = 108, normalized size = 5.68 \begin {gather*} -\frac {a^8}{27 x^{27}}-\frac {a^7 b}{3 x^{24}}-\frac {4 a^6 b^2}{3 x^{21}}-\frac {28 a^5 b^3}{9 x^{18}}-\frac {14 a^4 b^4}{3 x^{15}}-\frac {14 a^3 b^5}{3 x^{12}}-\frac {28 a^2 b^6}{9 x^9}-\frac {4 a b^7}{3 x^6}-\frac {b^8}{3 x^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(90\) vs.
\(2(17)=34\).
time = 0.21, size = 91, normalized size = 4.79
method | result | size |
gosper | \(-\frac {9 b^{8} x^{24}+36 a \,b^{7} x^{21}+84 a^{2} b^{6} x^{18}+126 a^{3} b^{5} x^{15}+126 a^{4} b^{4} x^{12}+84 a^{5} b^{3} x^{9}+36 a^{6} b^{2} x^{6}+9 a^{7} b \,x^{3}+a^{8}}{27 x^{27}}\) | \(91\) |
default | \(-\frac {14 a^{4} b^{4}}{3 x^{15}}-\frac {28 a^{2} b^{6}}{9 x^{9}}-\frac {14 a^{3} b^{5}}{3 x^{12}}-\frac {4 a \,b^{7}}{3 x^{6}}-\frac {4 a^{6} b^{2}}{3 x^{21}}-\frac {b^{8}}{3 x^{3}}-\frac {b \,a^{7}}{3 x^{24}}-\frac {28 a^{5} b^{3}}{9 x^{18}}-\frac {a^{8}}{27 x^{27}}\) | \(91\) |
norman | \(\frac {-\frac {1}{3} b^{8} x^{24}-\frac {28}{9} a^{2} b^{6} x^{18}-\frac {4}{3} a \,b^{7} x^{21}-\frac {28}{9} a^{5} b^{3} x^{9}-\frac {14}{3} a^{4} b^{4} x^{12}-\frac {14}{3} a^{3} b^{5} x^{15}-\frac {4}{3} a^{6} b^{2} x^{6}-\frac {1}{3} a^{7} b \,x^{3}-\frac {1}{27} a^{8}}{x^{27}}\) | \(92\) |
risch | \(\frac {-\frac {1}{3} b^{8} x^{24}-\frac {28}{9} a^{2} b^{6} x^{18}-\frac {4}{3} a \,b^{7} x^{21}-\frac {28}{9} a^{5} b^{3} x^{9}-\frac {14}{3} a^{4} b^{4} x^{12}-\frac {14}{3} a^{3} b^{5} x^{15}-\frac {4}{3} a^{6} b^{2} x^{6}-\frac {1}{3} a^{7} b \,x^{3}-\frac {1}{27} a^{8}}{x^{27}}\) | \(92\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 90 vs.
\(2 (17) = 34\).
time = 0.30, size = 90, normalized size = 4.74 \begin {gather*} -\frac {9 \, b^{8} x^{24} + 36 \, a b^{7} x^{21} + 84 \, a^{2} b^{6} x^{18} + 126 \, a^{3} b^{5} x^{15} + 126 \, a^{4} b^{4} x^{12} + 84 \, a^{5} b^{3} x^{9} + 36 \, a^{6} b^{2} x^{6} + 9 \, a^{7} b x^{3} + a^{8}}{27 \, x^{27}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 90 vs.
\(2 (17) = 34\).
time = 0.41, size = 90, normalized size = 4.74 \begin {gather*} -\frac {9 \, b^{8} x^{24} + 36 \, a b^{7} x^{21} + 84 \, a^{2} b^{6} x^{18} + 126 \, a^{3} b^{5} x^{15} + 126 \, a^{4} b^{4} x^{12} + 84 \, a^{5} b^{3} x^{9} + 36 \, a^{6} b^{2} x^{6} + 9 \, a^{7} b x^{3} + a^{8}}{27 \, x^{27}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 97 vs.
\(2 (15) = 30\).
time = 0.53, size = 97, normalized size = 5.11 \begin {gather*} \frac {- a^{8} - 9 a^{7} b x^{3} - 36 a^{6} b^{2} x^{6} - 84 a^{5} b^{3} x^{9} - 126 a^{4} b^{4} x^{12} - 126 a^{3} b^{5} x^{15} - 84 a^{2} b^{6} x^{18} - 36 a b^{7} x^{21} - 9 b^{8} x^{24}}{27 x^{27}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 90 vs.
\(2 (17) = 34\).
time = 1.30, size = 90, normalized size = 4.74 \begin {gather*} -\frac {9 \, b^{8} x^{24} + 36 \, a b^{7} x^{21} + 84 \, a^{2} b^{6} x^{18} + 126 \, a^{3} b^{5} x^{15} + 126 \, a^{4} b^{4} x^{12} + 84 \, a^{5} b^{3} x^{9} + 36 \, a^{6} b^{2} x^{6} + 9 \, a^{7} b x^{3} + a^{8}}{27 \, x^{27}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.23, size = 92, normalized size = 4.84 \begin {gather*} -\frac {\frac {a^8}{27}+\frac {a^7\,b\,x^3}{3}+\frac {4\,a^6\,b^2\,x^6}{3}+\frac {28\,a^5\,b^3\,x^9}{9}+\frac {14\,a^4\,b^4\,x^{12}}{3}+\frac {14\,a^3\,b^5\,x^{15}}{3}+\frac {28\,a^2\,b^6\,x^{18}}{9}+\frac {4\,a\,b^7\,x^{21}}{3}+\frac {b^8\,x^{24}}{3}}{x^{27}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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