Integrand size = 13, antiderivative size = 123 \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=-\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}-\frac {8 b^2 F^{a+b x} \log ^2(F)}{105 x^{3/2}}-\frac {16 b^3 F^{a+b x} \log ^3(F)}{105 \sqrt {x}}+\frac {16}{105} b^{7/2} F^a \sqrt {\pi } \text {erfi}\left (\sqrt {b} \sqrt {x} \sqrt {\log (F)}\right ) \log ^{\frac {7}{2}}(F) \]
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Time = 0.08 (sec) , antiderivative size = 123, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {2208, 2211, 2235} \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=\frac {16}{105} \sqrt {\pi } b^{7/2} F^a \log ^{\frac {7}{2}}(F) \text {erfi}\left (\sqrt {b} \sqrt {x} \sqrt {\log (F)}\right )-\frac {16 b^3 \log ^3(F) F^{a+b x}}{105 \sqrt {x}}-\frac {8 b^2 \log ^2(F) F^{a+b x}}{105 x^{3/2}}-\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b \log (F) F^{a+b x}}{35 x^{5/2}} \]
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Rule 2208
Rule 2211
Rule 2235
Rubi steps \begin{align*} \text {integral}& = -\frac {2 F^{a+b x}}{7 x^{7/2}}+\frac {1}{7} (2 b \log (F)) \int \frac {F^{a+b x}}{x^{7/2}} \, dx \\ & = -\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}+\frac {1}{35} \left (4 b^2 \log ^2(F)\right ) \int \frac {F^{a+b x}}{x^{5/2}} \, dx \\ & = -\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}-\frac {8 b^2 F^{a+b x} \log ^2(F)}{105 x^{3/2}}+\frac {1}{105} \left (8 b^3 \log ^3(F)\right ) \int \frac {F^{a+b x}}{x^{3/2}} \, dx \\ & = -\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}-\frac {8 b^2 F^{a+b x} \log ^2(F)}{105 x^{3/2}}-\frac {16 b^3 F^{a+b x} \log ^3(F)}{105 \sqrt {x}}+\frac {1}{105} \left (16 b^4 \log ^4(F)\right ) \int \frac {F^{a+b x}}{\sqrt {x}} \, dx \\ & = -\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}-\frac {8 b^2 F^{a+b x} \log ^2(F)}{105 x^{3/2}}-\frac {16 b^3 F^{a+b x} \log ^3(F)}{105 \sqrt {x}}+\frac {1}{105} \left (32 b^4 \log ^4(F)\right ) \text {Subst}\left (\int F^{a+b x^2} \, dx,x,\sqrt {x}\right ) \\ & = -\frac {2 F^{a+b x}}{7 x^{7/2}}-\frac {4 b F^{a+b x} \log (F)}{35 x^{5/2}}-\frac {8 b^2 F^{a+b x} \log ^2(F)}{105 x^{3/2}}-\frac {16 b^3 F^{a+b x} \log ^3(F)}{105 \sqrt {x}}+\frac {16}{105} b^{7/2} F^a \sqrt {\pi } \text {erfi}\left (\sqrt {b} \sqrt {x} \sqrt {\log (F)}\right ) \log ^{\frac {7}{2}}(F) \\ \end{align*}
Time = 0.15 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.59 \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=-\frac {2 F^a \left (8 \Gamma \left (\frac {1}{2},-b x \log (F)\right ) (-b x \log (F))^{7/2}+F^{b x} \left (15+6 b x \log (F)+4 b^2 x^2 \log ^2(F)+8 b^3 x^3 \log ^3(F)\right )\right )}{105 x^{7/2}} \]
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Time = 0.01 (sec) , antiderivative size = 96, normalized size of antiderivative = 0.78
method | result | size |
meijerg | \(-\frac {F^{a} \left (-b \right )^{\frac {9}{2}} \ln \left (F \right )^{\frac {7}{2}} \left (-\frac {2 \left (\frac {8 b^{3} x^{3} \ln \left (F \right )^{3}}{15}+\frac {4 b^{2} x^{2} \ln \left (F \right )^{2}}{15}+\frac {2 x b \ln \left (F \right )}{5}+1\right ) {\mathrm e}^{x b \ln \left (F \right )}}{7 x^{\frac {7}{2}} \left (-b \right )^{\frac {7}{2}} \ln \left (F \right )^{\frac {7}{2}}}+\frac {16 b^{\frac {7}{2}} \sqrt {\pi }\, \operatorname {erfi}\left (\sqrt {b}\, \sqrt {x}\, \sqrt {\ln \left (F \right )}\right )}{105 \left (-b \right )^{\frac {7}{2}}}\right )}{b}\) | \(96\) |
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Time = 0.27 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.70 \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=-\frac {2 \, {\left (8 \, \sqrt {\pi } \sqrt {-b \log \left (F\right )} F^{a} b^{3} x^{4} \operatorname {erf}\left (\sqrt {-b \log \left (F\right )} \sqrt {x}\right ) \log \left (F\right )^{3} + {\left (8 \, b^{3} x^{3} \log \left (F\right )^{3} + 4 \, b^{2} x^{2} \log \left (F\right )^{2} + 6 \, b x \log \left (F\right ) + 15\right )} F^{b x + a} \sqrt {x}\right )}}{105 \, x^{4}} \]
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\[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=\int \frac {F^{a + b x}}{x^{\frac {9}{2}}}\, dx \]
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Time = 0.23 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.20 \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=-\frac {\left (-b x \log \left (F\right )\right )^{\frac {7}{2}} F^{a} \Gamma \left (-\frac {7}{2}, -b x \log \left (F\right )\right )}{x^{\frac {7}{2}}} \]
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\[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=\int { \frac {F^{b x + a}}{x^{\frac {9}{2}}} \,d x } \]
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Time = 0.10 (sec) , antiderivative size = 99, normalized size of antiderivative = 0.80 \[ \int \frac {F^{a+b x}}{x^{9/2}} \, dx=-\frac {\frac {2\,F^{a+b\,x}}{7}+\frac {4\,F^{a+b\,x}\,b\,x\,\ln \left (F\right )}{35}+\frac {8\,F^{a+b\,x}\,b^2\,x^2\,{\ln \left (F\right )}^2}{105}+\frac {16\,F^{a+b\,x}\,b^3\,x^3\,{\ln \left (F\right )}^3}{105}-\frac {16\,F^a\,b^3\,x^3\,\mathrm {erfc}\left (\sqrt {-b\,x\,\ln \left (F\right )}\right )\,{\ln \left (F\right )}^3\,\sqrt {-\pi \,b\,x\,\ln \left (F\right )}}{105}}{x^{7/2}} \]
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