Integrand size = 15, antiderivative size = 41 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=-\frac {2 \sqrt {2+b x}}{\sqrt {x}}+2 \sqrt {b} \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {49, 56, 221} \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=2 \sqrt {b} \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )-\frac {2 \sqrt {b x+2}}{\sqrt {x}} \]
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Rule 49
Rule 56
Rule 221
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \sqrt {2+b x}}{\sqrt {x}}+b \int \frac {1}{\sqrt {x} \sqrt {2+b x}} \, dx \\ & = -\frac {2 \sqrt {2+b x}}{\sqrt {x}}+(2 b) \text {Subst}\left (\int \frac {1}{\sqrt {2+b x^2}} \, dx,x,\sqrt {x}\right ) \\ & = -\frac {2 \sqrt {2+b x}}{\sqrt {x}}+2 \sqrt {b} \sinh ^{-1}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.15 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=-\frac {2 \sqrt {2+b x}}{\sqrt {x}}-2 \sqrt {b} \log \left (-\sqrt {b} \sqrt {x}+\sqrt {2+b x}\right ) \]
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Time = 0.08 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.20
method | result | size |
meijerg | \(-\frac {\sqrt {b}\, \left (\frac {4 \sqrt {\pi }\, \sqrt {2}\, \sqrt {\frac {b x}{2}+1}}{\sqrt {x}\, \sqrt {b}}-4 \sqrt {\pi }\, \operatorname {arcsinh}\left (\frac {\sqrt {b}\, \sqrt {x}\, \sqrt {2}}{2}\right )\right )}{2 \sqrt {\pi }}\) | \(49\) |
risch | \(-\frac {2 \sqrt {b x +2}}{\sqrt {x}}+\frac {\sqrt {b}\, \ln \left (\frac {b x +1}{\sqrt {b}}+\sqrt {b \,x^{2}+2 x}\right ) \sqrt {x \left (b x +2\right )}}{\sqrt {x}\, \sqrt {b x +2}}\) | \(59\) |
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none
Time = 0.23 (sec) , antiderivative size = 87, normalized size of antiderivative = 2.12 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=\left [\frac {\sqrt {b} x \log \left (b x + \sqrt {b x + 2} \sqrt {b} \sqrt {x} + 1\right ) - 2 \, \sqrt {b x + 2} \sqrt {x}}{x}, -\frac {2 \, {\left (\sqrt {-b} x \arctan \left (\frac {\sqrt {b x + 2} \sqrt {-b}}{b \sqrt {x}}\right ) + \sqrt {b x + 2} \sqrt {x}\right )}}{x}\right ] \]
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Time = 0.89 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.17 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=- 2 \sqrt {b} \sqrt {1 + \frac {2}{b x}} - \sqrt {b} \log {\left (\frac {1}{b x} \right )} + 2 \sqrt {b} \log {\left (\sqrt {1 + \frac {2}{b x}} + 1 \right )} \]
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none
Time = 0.30 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.32 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=-\sqrt {b} \log \left (-\frac {\sqrt {b} - \frac {\sqrt {b x + 2}}{\sqrt {x}}}{\sqrt {b} + \frac {\sqrt {b x + 2}}{\sqrt {x}}}\right ) - \frac {2 \, \sqrt {b x + 2}}{\sqrt {x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 63 vs. \(2 (30) = 60\).
Time = 5.82 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.54 \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=-\frac {2 \, b^{2} {\left (\frac {\log \left ({\left | -\sqrt {b x + 2} \sqrt {b} + \sqrt {{\left (b x + 2\right )} b - 2 \, b} \right |}\right )}{\sqrt {b}} + \frac {\sqrt {b x + 2}}{\sqrt {{\left (b x + 2\right )} b - 2 \, b}}\right )}}{{\left | b \right |}} \]
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Timed out. \[ \int \frac {\sqrt {2+b x}}{x^{3/2}} \, dx=\int \frac {\sqrt {b\,x+2}}{x^{3/2}} \,d x \]
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