Integrand size = 13, antiderivative size = 62 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {\left (a+b x^3\right )^9}{33 a x^{33}}+\frac {b \left (a+b x^3\right )^9}{165 a^2 x^{30}}-\frac {b^2 \left (a+b x^3\right )^9}{1485 a^3 x^{27}} \]
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Time = 0.03 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {272, 47, 37} \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {b^2 \left (a+b x^3\right )^9}{1485 a^3 x^{27}}+\frac {b \left (a+b x^3\right )^9}{165 a^2 x^{30}}-\frac {\left (a+b x^3\right )^9}{33 a x^{33}} \]
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Rule 37
Rule 47
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \text {Subst}\left (\int \frac {(a+b x)^8}{x^{12}} \, dx,x,x^3\right ) \\ & = -\frac {\left (a+b x^3\right )^9}{33 a x^{33}}-\frac {(2 b) \text {Subst}\left (\int \frac {(a+b x)^8}{x^{11}} \, dx,x,x^3\right )}{33 a} \\ & = -\frac {\left (a+b x^3\right )^9}{33 a x^{33}}+\frac {b \left (a+b x^3\right )^9}{165 a^2 x^{30}}+\frac {b^2 \text {Subst}\left (\int \frac {(a+b x)^8}{x^{10}} \, dx,x,x^3\right )}{165 a^2} \\ & = -\frac {\left (a+b x^3\right )^9}{33 a x^{33}}+\frac {b \left (a+b x^3\right )^9}{165 a^2 x^{30}}-\frac {b^2 \left (a+b x^3\right )^9}{1485 a^3 x^{27}} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 108, normalized size of antiderivative = 1.74 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {a^8}{33 x^{33}}-\frac {4 a^7 b}{15 x^{30}}-\frac {28 a^6 b^2}{27 x^{27}}-\frac {7 a^5 b^3}{3 x^{24}}-\frac {10 a^4 b^4}{3 x^{21}}-\frac {28 a^3 b^5}{9 x^{18}}-\frac {28 a^2 b^6}{15 x^{15}}-\frac {2 a b^7}{3 x^{12}}-\frac {b^8}{9 x^9} \]
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Time = 3.73 (sec) , antiderivative size = 91, normalized size of antiderivative = 1.47
method | result | size |
default | \(-\frac {2 a \,b^{7}}{3 x^{12}}-\frac {4 a^{7} b}{15 x^{30}}-\frac {10 a^{4} b^{4}}{3 x^{21}}-\frac {28 a^{2} b^{6}}{15 x^{15}}-\frac {28 a^{3} b^{5}}{9 x^{18}}-\frac {b^{8}}{9 x^{9}}-\frac {7 a^{5} b^{3}}{3 x^{24}}-\frac {a^{8}}{33 x^{33}}-\frac {28 a^{6} b^{2}}{27 x^{27}}\) | \(91\) |
norman | \(\frac {-\frac {1}{33} a^{8}-\frac {1}{9} b^{8} x^{24}-\frac {28}{9} a^{3} b^{5} x^{15}-\frac {28}{15} a^{2} b^{6} x^{18}-\frac {2}{3} a \,b^{7} x^{21}-\frac {4}{15} x^{3} b \,a^{7}-\frac {28}{27} a^{6} b^{2} x^{6}-\frac {7}{3} x^{9} b^{3} a^{5}-\frac {10}{3} a^{4} b^{4} x^{12}}{x^{33}}\) | \(92\) |
risch | \(\frac {-\frac {1}{33} a^{8}-\frac {1}{9} b^{8} x^{24}-\frac {28}{9} a^{3} b^{5} x^{15}-\frac {28}{15} a^{2} b^{6} x^{18}-\frac {2}{3} a \,b^{7} x^{21}-\frac {4}{15} x^{3} b \,a^{7}-\frac {28}{27} a^{6} b^{2} x^{6}-\frac {7}{3} x^{9} b^{3} a^{5}-\frac {10}{3} a^{4} b^{4} x^{12}}{x^{33}}\) | \(92\) |
gosper | \(-\frac {165 b^{8} x^{24}+990 a \,b^{7} x^{21}+2772 a^{2} b^{6} x^{18}+4620 a^{3} b^{5} x^{15}+4950 a^{4} b^{4} x^{12}+3465 x^{9} b^{3} a^{5}+1540 a^{6} b^{2} x^{6}+396 x^{3} b \,a^{7}+45 a^{8}}{1485 x^{33}}\) | \(93\) |
parallelrisch | \(\frac {-165 b^{8} x^{24}-990 a \,b^{7} x^{21}-2772 a^{2} b^{6} x^{18}-4620 a^{3} b^{5} x^{15}-4950 a^{4} b^{4} x^{12}-3465 x^{9} b^{3} a^{5}-1540 a^{6} b^{2} x^{6}-396 x^{3} b \,a^{7}-45 a^{8}}{1485 x^{33}}\) | \(93\) |
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Time = 0.26 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.48 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {165 \, b^{8} x^{24} + 990 \, a b^{7} x^{21} + 2772 \, a^{2} b^{6} x^{18} + 4620 \, a^{3} b^{5} x^{15} + 4950 \, a^{4} b^{4} x^{12} + 3465 \, a^{5} b^{3} x^{9} + 1540 \, a^{6} b^{2} x^{6} + 396 \, a^{7} b x^{3} + 45 \, a^{8}}{1485 \, x^{33}} \]
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Time = 0.63 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.60 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=\frac {- 45 a^{8} - 396 a^{7} b x^{3} - 1540 a^{6} b^{2} x^{6} - 3465 a^{5} b^{3} x^{9} - 4950 a^{4} b^{4} x^{12} - 4620 a^{3} b^{5} x^{15} - 2772 a^{2} b^{6} x^{18} - 990 a b^{7} x^{21} - 165 b^{8} x^{24}}{1485 x^{33}} \]
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Time = 0.19 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.48 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {165 \, b^{8} x^{24} + 990 \, a b^{7} x^{21} + 2772 \, a^{2} b^{6} x^{18} + 4620 \, a^{3} b^{5} x^{15} + 4950 \, a^{4} b^{4} x^{12} + 3465 \, a^{5} b^{3} x^{9} + 1540 \, a^{6} b^{2} x^{6} + 396 \, a^{7} b x^{3} + 45 \, a^{8}}{1485 \, x^{33}} \]
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Time = 0.28 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.48 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {165 \, b^{8} x^{24} + 990 \, a b^{7} x^{21} + 2772 \, a^{2} b^{6} x^{18} + 4620 \, a^{3} b^{5} x^{15} + 4950 \, a^{4} b^{4} x^{12} + 3465 \, a^{5} b^{3} x^{9} + 1540 \, a^{6} b^{2} x^{6} + 396 \, a^{7} b x^{3} + 45 \, a^{8}}{1485 \, x^{33}} \]
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Time = 0.08 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.48 \[ \int \frac {\left (a+b x^3\right )^8}{x^{34}} \, dx=-\frac {\frac {a^8}{33}+\frac {4\,a^7\,b\,x^3}{15}+\frac {28\,a^6\,b^2\,x^6}{27}+\frac {7\,a^5\,b^3\,x^9}{3}+\frac {10\,a^4\,b^4\,x^{12}}{3}+\frac {28\,a^3\,b^5\,x^{15}}{9}+\frac {28\,a^2\,b^6\,x^{18}}{15}+\frac {2\,a\,b^7\,x^{21}}{3}+\frac {b^8\,x^{24}}{9}}{x^{33}} \]
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