Integrand size = 26, antiderivative size = 73 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {2 a^2 \sqrt {1-a x}}{5 (a x)^{5/2}}-\frac {6 a^2 \sqrt {1-a x}}{5 (a x)^{3/2}}-\frac {12 a^2 \sqrt {1-a x}}{5 \sqrt {a x}} \]
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Time = 0.01 (sec) , antiderivative size = 73, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {16, 79, 47, 37} \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {12 a^2 \sqrt {1-a x}}{5 \sqrt {a x}}-\frac {6 a^2 \sqrt {1-a x}}{5 (a x)^{3/2}}-\frac {2 a^2 \sqrt {1-a x}}{5 (a x)^{5/2}} \]
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Rule 16
Rule 37
Rule 47
Rule 79
Rubi steps \begin{align*} \text {integral}& = a^3 \int \frac {1+a x}{(a x)^{7/2} \sqrt {1-a x}} \, dx \\ & = -\frac {2 a^2 \sqrt {1-a x}}{5 (a x)^{5/2}}+\frac {1}{5} \left (9 a^3\right ) \int \frac {1}{(a x)^{5/2} \sqrt {1-a x}} \, dx \\ & = -\frac {2 a^2 \sqrt {1-a x}}{5 (a x)^{5/2}}-\frac {6 a^2 \sqrt {1-a x}}{5 (a x)^{3/2}}+\frac {1}{5} \left (6 a^3\right ) \int \frac {1}{(a x)^{3/2} \sqrt {1-a x}} \, dx \\ & = -\frac {2 a^2 \sqrt {1-a x}}{5 (a x)^{5/2}}-\frac {6 a^2 \sqrt {1-a x}}{5 (a x)^{3/2}}-\frac {12 a^2 \sqrt {1-a x}}{5 \sqrt {a x}} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.51 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {2 \sqrt {-a x (-1+a x)} \left (1+3 a x+6 a^2 x^2\right )}{5 a x^3} \]
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Time = 1.51 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.45
method | result | size |
gosper | \(-\frac {2 \sqrt {-a x +1}\, \left (6 a^{2} x^{2}+3 a x +1\right )}{5 x^{2} \sqrt {a x}}\) | \(33\) |
default | \(-\frac {2 \sqrt {-a x +1}\, \operatorname {csgn}\left (a \right )^{2} \left (6 a^{2} x^{2}+3 a x +1\right )}{5 x^{2} \sqrt {a x}}\) | \(37\) |
meijerg | \(-\frac {2 a \left (2 a x +1\right ) \sqrt {-a x +1}}{3 \sqrt {a x}\, x}-\frac {2 \left (\frac {8}{3} a^{2} x^{2}+\frac {4}{3} a x +1\right ) \sqrt {-a x +1}}{5 \sqrt {a x}\, x^{2}}\) | \(59\) |
risch | \(\frac {2 \sqrt {a x \left (-a x +1\right )}\, \left (6 a^{3} x^{3}-3 a^{2} x^{2}-2 a x -1\right )}{5 \sqrt {a x}\, \sqrt {-a x +1}\, x^{2} \sqrt {-x \left (a x -1\right ) a}}\) | \(63\) |
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Time = 0.25 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.48 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {2 \, {\left (6 \, a^{2} x^{2} + 3 \, a x + 1\right )} \sqrt {a x} \sqrt {-a x + 1}}{5 \, a x^{3}} \]
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Result contains complex when optimal does not.
Time = 3.56 (sec) , antiderivative size = 189, normalized size of antiderivative = 2.59 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=a \left (\begin {cases} - \frac {4 a \sqrt {-1 + \frac {1}{a x}}}{3} - \frac {2 \sqrt {-1 + \frac {1}{a x}}}{3 x} & \text {for}\: \frac {1}{\left |{a x}\right |} > 1 \\- \frac {4 i a \sqrt {1 - \frac {1}{a x}}}{3} - \frac {2 i \sqrt {1 - \frac {1}{a x}}}{3 x} & \text {otherwise} \end {cases}\right ) + \begin {cases} - \frac {16 a^{2} \sqrt {-1 + \frac {1}{a x}}}{15} - \frac {8 a \sqrt {-1 + \frac {1}{a x}}}{15 x} - \frac {2 \sqrt {-1 + \frac {1}{a x}}}{5 x^{2}} & \text {for}\: \frac {1}{\left |{a x}\right |} > 1 \\- \frac {16 i a^{2} \sqrt {1 - \frac {1}{a x}}}{15} - \frac {8 i a \sqrt {1 - \frac {1}{a x}}}{15 x} - \frac {2 i \sqrt {1 - \frac {1}{a x}}}{5 x^{2}} & \text {otherwise} \end {cases} \]
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Time = 0.28 (sec) , antiderivative size = 62, normalized size of antiderivative = 0.85 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {12 \, \sqrt {-a^{2} x^{2} + a x} a}{5 \, x} - \frac {6 \, \sqrt {-a^{2} x^{2} + a x}}{5 \, x^{2}} - \frac {2 \, \sqrt {-a^{2} x^{2} + a x}}{5 \, a x^{3}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 130 vs. \(2 (55) = 110\).
Time = 0.30 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.78 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {\frac {a^{3} {\left (\sqrt {-a x + 1} - 1\right )}^{5}}{\left (a x\right )^{\frac {5}{2}}} + \frac {15 \, a^{3} {\left (\sqrt {-a x + 1} - 1\right )}^{3}}{\left (a x\right )^{\frac {3}{2}}} + \frac {110 \, a^{3} {\left (\sqrt {-a x + 1} - 1\right )}}{\sqrt {a x}} - \frac {{\left (a^{3} + \frac {15 \, a^{2} {\left (\sqrt {-a x + 1} - 1\right )}^{2}}{x} + \frac {110 \, a {\left (\sqrt {-a x + 1} - 1\right )}^{4}}{x^{2}}\right )} \left (a x\right )^{\frac {5}{2}}}{{\left (\sqrt {-a x + 1} - 1\right )}^{5}}}{80 \, a} \]
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Time = 3.37 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.44 \[ \int \frac {1+a x}{x^3 \sqrt {a x} \sqrt {1-a x}} \, dx=-\frac {\sqrt {1-a\,x}\,\left (\frac {12\,a^2\,x^2}{5}+\frac {6\,a\,x}{5}+\frac {2}{5}\right )}{x^2\,\sqrt {a\,x}} \]
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