Integrand size = 14, antiderivative size = 43 \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=-\frac {1}{2} \sqrt {x} \sqrt {1+x}+\frac {\text {arcsinh}\left (\sqrt {x}\right )}{2}+x \log \left (\sqrt {x}+\sqrt {1+x}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.429, Rules used = {2628, 12, 1978, 52, 56, 221} \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=\frac {\text {arcsinh}\left (\sqrt {x}\right )}{2}-\frac {1}{2} \sqrt {x} \sqrt {x+1}+x \log \left (\sqrt {x}+\sqrt {x+1}\right ) \]
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Rule 12
Rule 52
Rule 56
Rule 221
Rule 1978
Rule 2628
Rubi steps \begin{align*} \text {integral}& = x \log \left (\sqrt {x}+\sqrt {1+x}\right )-\int \frac {1}{2} \sqrt {\frac {x}{1+x}} \, dx \\ & = x \log \left (\sqrt {x}+\sqrt {1+x}\right )-\frac {1}{2} \int \sqrt {\frac {x}{1+x}} \, dx \\ & = x \log \left (\sqrt {x}+\sqrt {1+x}\right )-\frac {1}{2} \int \frac {\sqrt {x}}{\sqrt {1+x}} \, dx \\ & = -\frac {1}{2} \sqrt {x} \sqrt {1+x}+x \log \left (\sqrt {x}+\sqrt {1+x}\right )+\frac {1}{4} \int \frac {1}{\sqrt {x} \sqrt {1+x}} \, dx \\ & = -\frac {1}{2} \sqrt {x} \sqrt {1+x}+x \log \left (\sqrt {x}+\sqrt {1+x}\right )+\frac {1}{2} \text {Subst}\left (\int \frac {1}{\sqrt {1+x^2}} \, dx,x,\sqrt {x}\right ) \\ & = -\frac {1}{2} \sqrt {x} \sqrt {1+x}+\frac {1}{2} \sinh ^{-1}\left (\sqrt {x}\right )+x \log \left (\sqrt {x}+\sqrt {1+x}\right ) \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.00 \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=-\frac {1}{2} \sqrt {x} \sqrt {1+x}+\frac {\text {arcsinh}\left (\sqrt {x}\right )}{2}+x \log \left (\sqrt {x}+\sqrt {1+x}\right ) \]
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Time = 0.09 (sec) , antiderivative size = 52, normalized size of antiderivative = 1.21
method | result | size |
default | \(x \ln \left (\sqrt {x}+\sqrt {x +1}\right )-\frac {\sqrt {x}\, \sqrt {x +1}}{2}+\frac {\sqrt {x \left (x +1\right )}\, \ln \left (\frac {1}{2}+x +\sqrt {x^{2}+x}\right )}{4 \sqrt {x}\, \sqrt {x +1}}\) | \(52\) |
parts | \(x \ln \left (\sqrt {x}+\sqrt {x +1}\right )-\frac {\sqrt {x}\, \left (x +1\right )^{\frac {3}{2}}}{4}-\frac {\sqrt {x}\, \sqrt {x +1}}{4}+\frac {\sqrt {x \left (x +1\right )}\, \ln \left (\frac {1}{2}+x +\sqrt {x^{2}+x}\right )}{4 \sqrt {x}\, \sqrt {x +1}}+\frac {x^{\frac {3}{2}} \sqrt {x +1}}{4}\) | \(72\) |
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Time = 0.32 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.65 \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=\frac {1}{2} \, {\left (2 \, x + 1\right )} \log \left (\sqrt {x + 1} + \sqrt {x}\right ) - \frac {1}{2} \, \sqrt {x + 1} \sqrt {x} \]
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\[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=\int \log {\left (\sqrt {x} + \sqrt {x + 1} \right )}\, dx \]
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\[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=\int { \log \left (\sqrt {x + 1} + \sqrt {x}\right ) \,d x } \]
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Time = 0.36 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.93 \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=x \log \left (\sqrt {x + 1} + \sqrt {x}\right ) - \frac {1}{2} \, \sqrt {x^{2} + x} - \frac {1}{4} \, \log \left ({\left | -2 \, x + 2 \, \sqrt {x^{2} + x} - 1 \right |}\right ) \]
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Time = 2.22 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.86 \[ \int \log \left (\sqrt {x}+\sqrt {1+x}\right ) \, dx=\mathrm {atanh}\left (\frac {\sqrt {x}}{\sqrt {x+1}-1}\right )-\frac {\sqrt {x}\,\sqrt {x+1}}{2}+x\,\ln \left (\sqrt {x+1}+\sqrt {x}\right ) \]
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