Integrand size = 15, antiderivative size = 44 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=-\frac {2 \sqrt {x}}{b \sqrt {2+b x}}+\frac {2 \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{b^{3/2}} \]
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Time = 0.01 (sec) , antiderivative size = 44, 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} \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=\frac {2 \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{b^{3/2}}-\frac {2 \sqrt {x}}{b \sqrt {b x+2}} \]
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Rule 49
Rule 56
Rule 221
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \sqrt {x}}{b \sqrt {2+b x}}+\frac {\int \frac {1}{\sqrt {x} \sqrt {2+b x}} \, dx}{b} \\ & = -\frac {2 \sqrt {x}}{b \sqrt {2+b x}}+\frac {2 \text {Subst}\left (\int \frac {1}{\sqrt {2+b x^2}} \, dx,x,\sqrt {x}\right )}{b} \\ & = -\frac {2 \sqrt {x}}{b \sqrt {2+b x}}+\frac {2 \sinh ^{-1}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{b^{3/2}} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.14 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=-\frac {2 \sqrt {x}}{b \sqrt {2+b x}}-\frac {2 \log \left (-\sqrt {b} \sqrt {x}+\sqrt {2+b x}\right )}{b^{3/2}} \]
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Time = 0.10 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.09
method | result | size |
meijerg | \(\frac {-\frac {\sqrt {\pi }\, \sqrt {x}\, \sqrt {2}\, \sqrt {b}}{\sqrt {\frac {b x}{2}+1}}+2 \sqrt {\pi }\, \operatorname {arcsinh}\left (\frac {\sqrt {b}\, \sqrt {x}\, \sqrt {2}}{2}\right )}{b^{\frac {3}{2}} \sqrt {\pi }}\) | \(48\) |
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none
Time = 0.24 (sec) , antiderivative size = 117, normalized size of antiderivative = 2.66 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=\left [\frac {{\left (b x + 2\right )} \sqrt {b} \log \left (b x + \sqrt {b x + 2} \sqrt {b} \sqrt {x} + 1\right ) - 2 \, \sqrt {b x + 2} b \sqrt {x}}{b^{3} x + 2 \, b^{2}}, -\frac {2 \, {\left ({\left (b x + 2\right )} \sqrt {-b} \arctan \left (\frac {\sqrt {b x + 2} \sqrt {-b}}{b \sqrt {x}}\right ) + \sqrt {b x + 2} b \sqrt {x}\right )}}{b^{3} x + 2 \, b^{2}}\right ] \]
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Time = 0.94 (sec) , antiderivative size = 41, normalized size of antiderivative = 0.93 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=- \frac {2 \sqrt {x}}{b \sqrt {b x + 2}} + \frac {2 \operatorname {asinh}{\left (\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2} \right )}}{b^{\frac {3}{2}}} \]
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none
Time = 0.29 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.30 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=-\frac {\log \left (-\frac {\sqrt {b} - \frac {\sqrt {b x + 2}}{\sqrt {x}}}{\sqrt {b} + \frac {\sqrt {b x + 2}}{\sqrt {x}}}\right )}{b^{\frac {3}{2}}} - \frac {2 \, \sqrt {x}}{\sqrt {b x + 2} b} \]
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Leaf count of result is larger than twice the leaf count of optimal. 82 vs. \(2 (33) = 66\).
Time = 1.67 (sec) , antiderivative size = 82, normalized size of antiderivative = 1.86 \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=-\frac {{\left (\frac {\log \left ({\left (\sqrt {b x + 2} \sqrt {b} - \sqrt {{\left (b x + 2\right )} b - 2 \, b}\right )}^{2}\right )}{\sqrt {b}} + \frac {8 \, \sqrt {b}}{{\left (\sqrt {b x + 2} \sqrt {b} - \sqrt {{\left (b x + 2\right )} b - 2 \, b}\right )}^{2} + 2 \, b}\right )} {\left | b \right |}}{b^{2}} \]
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Timed out. \[ \int \frac {\sqrt {x}}{(2+b x)^{3/2}} \, dx=\int \frac {\sqrt {x}}{{\left (b\,x+2\right )}^{3/2}} \,d x \]
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