Integrand size = 21, antiderivative size = 87 \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=-\frac {3 b \sqrt {b \sqrt {x}+a x}}{2 a^2}+\frac {\sqrt {x} \sqrt {b \sqrt {x}+a x}}{a}+\frac {3 b^2 \text {arctanh}\left (\frac {\sqrt {a} \sqrt {x}}{\sqrt {b \sqrt {x}+a x}}\right )}{2 a^{5/2}} \]
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Time = 0.05 (sec) , antiderivative size = 87, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.238, Rules used = {2043, 684, 654, 634, 212} \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\frac {3 b^2 \text {arctanh}\left (\frac {\sqrt {a} \sqrt {x}}{\sqrt {a x+b \sqrt {x}}}\right )}{2 a^{5/2}}-\frac {3 b \sqrt {a x+b \sqrt {x}}}{2 a^2}+\frac {\sqrt {x} \sqrt {a x+b \sqrt {x}}}{a} \]
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Rule 212
Rule 634
Rule 654
Rule 684
Rule 2043
Rubi steps \begin{align*} \text {integral}& = 2 \text {Subst}\left (\int \frac {x^2}{\sqrt {b x+a x^2}} \, dx,x,\sqrt {x}\right ) \\ & = \frac {\sqrt {x} \sqrt {b \sqrt {x}+a x}}{a}-\frac {(3 b) \text {Subst}\left (\int \frac {x}{\sqrt {b x+a x^2}} \, dx,x,\sqrt {x}\right )}{2 a} \\ & = -\frac {3 b \sqrt {b \sqrt {x}+a x}}{2 a^2}+\frac {\sqrt {x} \sqrt {b \sqrt {x}+a x}}{a}+\frac {\left (3 b^2\right ) \text {Subst}\left (\int \frac {1}{\sqrt {b x+a x^2}} \, dx,x,\sqrt {x}\right )}{4 a^2} \\ & = -\frac {3 b \sqrt {b \sqrt {x}+a x}}{2 a^2}+\frac {\sqrt {x} \sqrt {b \sqrt {x}+a x}}{a}+\frac {\left (3 b^2\right ) \text {Subst}\left (\int \frac {1}{1-a x^2} \, dx,x,\frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}}\right )}{2 a^2} \\ & = -\frac {3 b \sqrt {b \sqrt {x}+a x}}{2 a^2}+\frac {\sqrt {x} \sqrt {b \sqrt {x}+a x}}{a}+\frac {3 b^2 \tanh ^{-1}\left (\frac {\sqrt {a} \sqrt {x}}{\sqrt {b \sqrt {x}+a x}}\right )}{2 a^{5/2}} \\ \end{align*}
Time = 0.26 (sec) , antiderivative size = 80, normalized size of antiderivative = 0.92 \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\frac {\left (-3 b+2 a \sqrt {x}\right ) \sqrt {b \sqrt {x}+a x}}{2 a^2}+\frac {3 b^2 \text {arctanh}\left (\frac {\sqrt {a} \sqrt {b \sqrt {x}+a x}}{b+a \sqrt {x}}\right )}{2 a^{5/2}} \]
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Time = 2.41 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.85
method | result | size |
derivativedivides | \(\frac {\sqrt {x}\, \sqrt {b \sqrt {x}+a x}}{a}-\frac {3 b \left (\frac {\sqrt {b \sqrt {x}+a x}}{a}-\frac {b \ln \left (\frac {\frac {b}{2}+a \sqrt {x}}{\sqrt {a}}+\sqrt {b \sqrt {x}+a x}\right )}{2 a^{\frac {3}{2}}}\right )}{2 a}\) | \(74\) |
default | \(\frac {\sqrt {b \sqrt {x}+a x}\, \left (4 \sqrt {x}\, \sqrt {b \sqrt {x}+a x}\, a^{\frac {5}{2}}+2 \sqrt {b \sqrt {x}+a x}\, a^{\frac {3}{2}} b +4 \ln \left (\frac {2 a \sqrt {x}+2 \sqrt {\sqrt {x}\, \left (a \sqrt {x}+b \right )}\, \sqrt {a}+b}{2 \sqrt {a}}\right ) a \,b^{2}-8 \sqrt {\sqrt {x}\, \left (a \sqrt {x}+b \right )}\, a^{\frac {3}{2}} b -b^{2} \ln \left (\frac {2 \sqrt {b \sqrt {x}+a x}\, \sqrt {a}+2 a \sqrt {x}+b}{2 \sqrt {a}}\right ) a \right )}{4 \sqrt {\sqrt {x}\, \left (a \sqrt {x}+b \right )}\, a^{\frac {7}{2}}}\) | \(160\) |
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Timed out. \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\text {Timed out} \]
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Time = 0.33 (sec) , antiderivative size = 143, normalized size of antiderivative = 1.64 \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=2 \left (\begin {cases} \left (\frac {\sqrt {x}}{2 a} - \frac {3 b}{4 a^{2}}\right ) \sqrt {a x + b \sqrt {x}} + \frac {3 b^{2} \left (\begin {cases} \frac {\log {\left (2 \sqrt {a} \sqrt {a x + b \sqrt {x}} + 2 a \sqrt {x} + b \right )}}{\sqrt {a}} & \text {for}\: \frac {b^{2}}{a} \neq 0 \\\frac {\left (\sqrt {x} + \frac {b}{2 a}\right ) \log {\left (\sqrt {x} + \frac {b}{2 a} \right )}}{\sqrt {a \left (\sqrt {x} + \frac {b}{2 a}\right )^{2}}} & \text {otherwise} \end {cases}\right )}{8 a^{2}} & \text {for}\: a \neq 0 \\\frac {2 \left (b \sqrt {x}\right )^{\frac {5}{2}}}{5 b^{3}} & \text {for}\: b \neq 0 \\\tilde {\infty } x^{\frac {3}{2}} & \text {otherwise} \end {cases}\right ) \]
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\[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\int { \frac {\sqrt {x}}{\sqrt {a x + b \sqrt {x}}} \,d x } \]
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none
Time = 0.33 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.77 \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\frac {1}{2} \, \sqrt {a x + b \sqrt {x}} {\left (\frac {2 \, \sqrt {x}}{a} - \frac {3 \, b}{a^{2}}\right )} - \frac {3 \, b^{2} \log \left ({\left | 2 \, \sqrt {a} {\left (\sqrt {a} \sqrt {x} - \sqrt {a x + b \sqrt {x}}\right )} + b \right |}\right )}{4 \, a^{\frac {5}{2}}} \]
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Timed out. \[ \int \frac {\sqrt {x}}{\sqrt {b \sqrt {x}+a x}} \, dx=\int \frac {\sqrt {x}}{\sqrt {a\,x+b\,\sqrt {x}}} \,d x \]
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