Integrand size = 15, antiderivative size = 40 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {2+b x}+\frac {2 \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}} \]
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Time = 0.01 (sec) , antiderivative size = 40, 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 = {52, 56, 221} \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\frac {2 \text {arcsinh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}}+\sqrt {x} \sqrt {b x+2} \]
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Rule 52
Rule 56
Rule 221
Rubi steps \begin{align*} \text {integral}& = \sqrt {x} \sqrt {2+b x}+\int \frac {1}{\sqrt {x} \sqrt {2+b x}} \, dx \\ & = \sqrt {x} \sqrt {2+b x}+2 \text {Subst}\left (\int \frac {1}{\sqrt {2+b x^2}} \, dx,x,\sqrt {x}\right ) \\ & = \sqrt {x} \sqrt {2+b x}+\frac {2 \sinh ^{-1}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.15 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {2+b x}-\frac {2 \log \left (-\sqrt {b} \sqrt {x}+\sqrt {2+b x}\right )}{\sqrt {b}} \]
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Time = 0.07 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.22
method | result | size |
meijerg | \(-\frac {-\sqrt {\pi }\, \sqrt {b}\, \sqrt {x}\, \sqrt {2}\, \sqrt {\frac {b x}{2}+1}-2 \sqrt {\pi }\, \operatorname {arcsinh}\left (\frac {\sqrt {b}\, \sqrt {x}\, \sqrt {2}}{2}\right )}{\sqrt {b}\, \sqrt {\pi }}\) | \(49\) |
default | \(\sqrt {x}\, \sqrt {b x +2}+\frac {\sqrt {x \left (b x +2\right )}\, \ln \left (\frac {b x +1}{\sqrt {b}}+\sqrt {b \,x^{2}+2 x}\right )}{\sqrt {b x +2}\, \sqrt {x}\, \sqrt {b}}\) | \(58\) |
risch | \(\sqrt {x}\, \sqrt {b x +2}+\frac {\sqrt {x \left (b x +2\right )}\, \ln \left (\frac {b x +1}{\sqrt {b}}+\sqrt {b \,x^{2}+2 x}\right )}{\sqrt {b x +2}\, \sqrt {x}\, \sqrt {b}}\) | \(58\) |
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none
Time = 0.23 (sec) , antiderivative size = 86, normalized size of antiderivative = 2.15 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\left [\frac {\sqrt {b x + 2} b \sqrt {x} + \sqrt {b} \log \left (b x + \sqrt {b x + 2} \sqrt {b} \sqrt {x} + 1\right )}{b}, \frac {\sqrt {b x + 2} b \sqrt {x} - 2 \, \sqrt {-b} \arctan \left (\frac {\sqrt {b x + 2} \sqrt {-b}}{b \sqrt {x}}\right )}{b}\right ] \]
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Time = 0.95 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.92 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\sqrt {x} \sqrt {b x + 2} + \frac {2 \operatorname {asinh}{\left (\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2} \right )}}{\sqrt {b}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 68 vs. \(2 (29) = 58\).
Time = 0.31 (sec) , antiderivative size = 68, normalized size of antiderivative = 1.70 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=-\frac {\log \left (-\frac {\sqrt {b} - \frac {\sqrt {b x + 2}}{\sqrt {x}}}{\sqrt {b} + \frac {\sqrt {b x + 2}}{\sqrt {x}}}\right )}{\sqrt {b}} - \frac {2 \, \sqrt {b x + 2}}{{\left (b - \frac {b x + 2}{x}\right )} \sqrt {x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 66 vs. \(2 (29) = 58\).
Time = 5.89 (sec) , antiderivative size = 66, normalized size of antiderivative = 1.65 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=-\frac {b {\left (\frac {2 \, \log \left ({\left | -\sqrt {b x + 2} \sqrt {b} + \sqrt {{\left (b x + 2\right )} b - 2 \, b} \right |}\right )}{\sqrt {b}} - \frac {\sqrt {{\left (b x + 2\right )} b - 2 \, b} \sqrt {b x + 2}}{b}\right )}}{{\left | b \right |}} \]
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Time = 0.70 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.00 \[ \int \frac {\sqrt {2+b x}}{\sqrt {x}} \, dx=\sqrt {x}\,\sqrt {b\,x+2}-\frac {4\,\mathrm {atanh}\left (\frac {\sqrt {b}\,\sqrt {x}}{\sqrt {2}-\sqrt {b\,x+2}}\right )}{\sqrt {b}} \]
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