Integrand size = 17, antiderivative size = 152 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=-\frac {512 b^5}{21 a^6 \left (a+\frac {b}{x}\right )^{3/2} x^{3/2}}-\frac {256 b^4}{7 a^5 \left (a+\frac {b}{x}\right )^{3/2} \sqrt {x}}-\frac {64 b^3 \sqrt {x}}{7 a^4 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}} \]
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Time = 0.04 (sec) , antiderivative size = 152, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {277, 270} \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=-\frac {512 b^5}{21 a^6 x^{3/2} \left (a+\frac {b}{x}\right )^{3/2}}-\frac {256 b^4}{7 a^5 \sqrt {x} \left (a+\frac {b}{x}\right )^{3/2}}-\frac {64 b^3 \sqrt {x}}{7 a^4 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}} \]
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Rule 270
Rule 277
Rubi steps \begin{align*} \text {integral}& = \frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}}-\frac {(10 b) \int \frac {x^{3/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx}{7 a} \\ & = -\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}}+\frac {\left (16 b^2\right ) \int \frac {\sqrt {x}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx}{7 a^2} \\ & = \frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}}-\frac {\left (32 b^3\right ) \int \frac {1}{\left (a+\frac {b}{x}\right )^{5/2} \sqrt {x}} \, dx}{7 a^3} \\ & = -\frac {64 b^3 \sqrt {x}}{7 a^4 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}}+\frac {\left (128 b^4\right ) \int \frac {1}{\left (a+\frac {b}{x}\right )^{5/2} x^{3/2}} \, dx}{7 a^4} \\ & = -\frac {256 b^4}{7 a^5 \left (a+\frac {b}{x}\right )^{3/2} \sqrt {x}}-\frac {64 b^3 \sqrt {x}}{7 a^4 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}}+\frac {\left (256 b^5\right ) \int \frac {1}{\left (a+\frac {b}{x}\right )^{5/2} x^{5/2}} \, dx}{7 a^5} \\ & = -\frac {512 b^5}{21 a^6 \left (a+\frac {b}{x}\right )^{3/2} x^{3/2}}-\frac {256 b^4}{7 a^5 \left (a+\frac {b}{x}\right )^{3/2} \sqrt {x}}-\frac {64 b^3 \sqrt {x}}{7 a^4 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {32 b^2 x^{3/2}}{21 a^3 \left (a+\frac {b}{x}\right )^{3/2}}-\frac {4 b x^{5/2}}{7 a^2 \left (a+\frac {b}{x}\right )^{3/2}}+\frac {2 x^{7/2}}{7 a \left (a+\frac {b}{x}\right )^{3/2}} \\ \end{align*}
Time = 6.34 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.54 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=\frac {2 \sqrt {a+\frac {b}{x}} \sqrt {x} \left (-256 b^5-384 a b^4 x-96 a^2 b^3 x^2+16 a^3 b^2 x^3-6 a^4 b x^4+3 a^5 x^5\right )}{21 a^6 (b+a x)^2} \]
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Time = 0.04 (sec) , antiderivative size = 77, normalized size of antiderivative = 0.51
method | result | size |
gosper | \(\frac {2 \left (a x +b \right ) \left (3 a^{5} x^{5}-6 a^{4} b \,x^{4}+16 a^{3} b^{2} x^{3}-96 a^{2} b^{3} x^{2}-384 b^{4} x a -256 b^{5}\right )}{21 a^{6} x^{\frac {5}{2}} \left (\frac {a x +b}{x}\right )^{\frac {5}{2}}}\) | \(77\) |
default | \(\frac {2 \sqrt {\frac {a x +b}{x}}\, \sqrt {x}\, \left (3 a^{5} x^{5}-6 a^{4} b \,x^{4}+16 a^{3} b^{2} x^{3}-96 a^{2} b^{3} x^{2}-384 b^{4} x a -256 b^{5}\right )}{21 \left (a x +b \right )^{2} a^{6}}\) | \(79\) |
risch | \(\frac {2 \left (3 a^{3} x^{3}-12 a^{2} b \,x^{2}+37 a \,b^{2} x -158 b^{3}\right ) \left (a x +b \right )}{21 a^{6} \sqrt {x}\, \sqrt {\frac {a x +b}{x}}}-\frac {2 b^{4} \left (15 a x +14 b \right )}{3 a^{6} \left (a x +b \right ) \sqrt {x}\, \sqrt {\frac {a x +b}{x}}}\) | \(93\) |
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Time = 0.25 (sec) , antiderivative size = 92, normalized size of antiderivative = 0.61 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=\frac {2 \, {\left (3 \, a^{5} x^{5} - 6 \, a^{4} b x^{4} + 16 \, a^{3} b^{2} x^{3} - 96 \, a^{2} b^{3} x^{2} - 384 \, a b^{4} x - 256 \, b^{5}\right )} \sqrt {x} \sqrt {\frac {a x + b}{x}}}{21 \, {\left (a^{8} x^{2} + 2 \, a^{7} b x + a^{6} b^{2}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 799 vs. \(2 (134) = 268\).
Time = 6.12 (sec) , antiderivative size = 799, normalized size of antiderivative = 5.26 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=\frac {6 a^{8} b^{\frac {51}{2}} x^{8} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} + \frac {6 a^{7} b^{\frac {53}{2}} x^{7} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} + \frac {14 a^{6} b^{\frac {55}{2}} x^{6} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {126 a^{5} b^{\frac {57}{2}} x^{5} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {1260 a^{4} b^{\frac {59}{2}} x^{4} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {3360 a^{3} b^{\frac {61}{2}} x^{3} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {4032 a^{2} b^{\frac {63}{2}} x^{2} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {2304 a b^{\frac {65}{2}} x \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} - \frac {512 b^{\frac {67}{2}} \sqrt {\frac {a x}{b} + 1}}{21 a^{11} b^{25} x^{5} + 105 a^{10} b^{26} x^{4} + 210 a^{9} b^{27} x^{3} + 210 a^{8} b^{28} x^{2} + 105 a^{7} b^{29} x + 21 a^{6} b^{30}} \]
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Time = 0.20 (sec) , antiderivative size = 106, normalized size of antiderivative = 0.70 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=\frac {2 \, {\left (3 \, {\left (a + \frac {b}{x}\right )}^{\frac {7}{2}} x^{\frac {7}{2}} - 21 \, {\left (a + \frac {b}{x}\right )}^{\frac {5}{2}} b x^{\frac {5}{2}} + 70 \, {\left (a + \frac {b}{x}\right )}^{\frac {3}{2}} b^{2} x^{\frac {3}{2}} - 210 \, \sqrt {a + \frac {b}{x}} b^{3} \sqrt {x}\right )}}{21 \, a^{6}} - \frac {2 \, {\left (15 \, {\left (a + \frac {b}{x}\right )} b^{4} x - b^{5}\right )}}{3 \, {\left (a + \frac {b}{x}\right )}^{\frac {3}{2}} a^{6} x^{\frac {3}{2}}} \]
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Time = 0.31 (sec) , antiderivative size = 90, normalized size of antiderivative = 0.59 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=-\frac {2 \, {\left (15 \, {\left (a x + b\right )} b^{4} - b^{5}\right )}}{3 \, {\left (a x + b\right )}^{\frac {3}{2}} a^{6}} + \frac {2 \, {\left (3 \, {\left (a x + b\right )}^{\frac {7}{2}} a^{36} - 21 \, {\left (a x + b\right )}^{\frac {5}{2}} a^{36} b + 70 \, {\left (a x + b\right )}^{\frac {3}{2}} a^{36} b^{2} - 210 \, \sqrt {a x + b} a^{36} b^{3}\right )}}{21 \, a^{42}} \]
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Time = 6.67 (sec) , antiderivative size = 78, normalized size of antiderivative = 0.51 \[ \int \frac {x^{5/2}}{\left (a+\frac {b}{x}\right )^{5/2}} \, dx=-\frac {2\,\sqrt {x}\,\sqrt {\frac {b+a\,x}{x}}\,\left (-3\,a^5\,x^5+6\,a^4\,b\,x^4-16\,a^3\,b^2\,x^3+96\,a^2\,b^3\,x^2+384\,a\,b^4\,x+256\,b^5\right )}{21\,a^6\,{\left (b+a\,x\right )}^2} \]
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