Integrand size = 15, antiderivative size = 32 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=\frac {1}{\sqrt {x} \sqrt {2+b x}}-\frac {\sqrt {2+b x}}{\sqrt {x}} \]
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Time = 0.00 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {47, 37} \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=\frac {1}{\sqrt {x} \sqrt {b x+2}}-\frac {\sqrt {b x+2}}{\sqrt {x}} \]
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Rule 37
Rule 47
Rubi steps \begin{align*} \text {integral}& = \frac {1}{\sqrt {x} \sqrt {2+b x}}+\int \frac {1}{x^{3/2} \sqrt {2+b x}} \, dx \\ & = \frac {1}{\sqrt {x} \sqrt {2+b x}}-\frac {\sqrt {2+b x}}{\sqrt {x}} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.66 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=\frac {-1-b x}{\sqrt {x} \sqrt {2+b x}} \]
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Time = 0.10 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.56
method | result | size |
gosper | \(-\frac {b x +1}{\sqrt {x}\, \sqrt {b x +2}}\) | \(18\) |
meijerg | \(-\frac {\sqrt {2}\, \left (b x +1\right )}{2 \sqrt {x}\, \sqrt {\frac {b x}{2}+1}}\) | \(22\) |
default | \(-\frac {1}{\sqrt {x}\, \sqrt {b x +2}}-\frac {b \sqrt {x}}{\sqrt {b x +2}}\) | \(27\) |
risch | \(-\frac {\sqrt {b x +2}}{2 \sqrt {x}}-\frac {b \sqrt {x}}{2 \sqrt {b x +2}}\) | \(27\) |
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none
Time = 0.23 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.88 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=-\frac {\sqrt {b x + 2} {\left (b x + 1\right )} \sqrt {x}}{b x^{2} + 2 \, x} \]
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Time = 0.85 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.06 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=- \frac {\sqrt {b}}{\sqrt {1 + \frac {2}{b x}}} - \frac {1}{\sqrt {b} x \sqrt {1 + \frac {2}{b x}}} \]
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none
Time = 0.23 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.81 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=-\frac {b \sqrt {x}}{2 \, \sqrt {b x + 2}} - \frac {\sqrt {b x + 2}}{2 \, \sqrt {x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 74 vs. \(2 (24) = 48\).
Time = 0.31 (sec) , antiderivative size = 74, normalized size of antiderivative = 2.31 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=-\frac {\sqrt {b x + 2} b^{2}}{2 \, \sqrt {{\left (b x + 2\right )} b - 2 \, b} {\left | b \right |}} - \frac {2 \, b^{\frac {5}{2}}}{{\left ({\left (\sqrt {b x + 2} \sqrt {b} - \sqrt {{\left (b x + 2\right )} b - 2 \, b}\right )}^{2} + 2 \, b\right )} {\left | b \right |}} \]
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Time = 0.35 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.53 \[ \int \frac {1}{x^{3/2} (2+b x)^{3/2}} \, dx=-\frac {b\,x+1}{\sqrt {x}\,\sqrt {b\,x+2}} \]
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