Integrand size = 24, antiderivative size = 179 \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=-\frac {2 b^3 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}}}{\left (a+\frac {b}{\sqrt {x}}\right ) \sqrt {x}}+\frac {6 a^2 b \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} \sqrt {x}}{a+\frac {b}{\sqrt {x}}}+\frac {a^3 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} x}{a+\frac {b}{\sqrt {x}}}+\frac {6 a b^2 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} \log \left (\sqrt {x}\right )}{a+\frac {b}{\sqrt {x}}} \]
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Time = 0.06 (sec) , antiderivative size = 179, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {1355, 1369, 269, 45} \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\frac {6 a^2 b \sqrt {x} \sqrt {a^2+\frac {2 a b}{\sqrt {x}}+\frac {b^2}{x}}}{a+\frac {b}{\sqrt {x}}}+\frac {6 a b^2 \log \left (\sqrt {x}\right ) \sqrt {a^2+\frac {2 a b}{\sqrt {x}}+\frac {b^2}{x}}}{a+\frac {b}{\sqrt {x}}}-\frac {2 b^3 \sqrt {a^2+\frac {2 a b}{\sqrt {x}}+\frac {b^2}{x}}}{\sqrt {x} \left (a+\frac {b}{\sqrt {x}}\right )}+\frac {a^3 x \sqrt {a^2+\frac {2 a b}{\sqrt {x}}+\frac {b^2}{x}}}{a+\frac {b}{\sqrt {x}}} \]
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Rule 45
Rule 269
Rule 1355
Rule 1369
Rubi steps \begin{align*} \text {integral}& = 2 \text {Subst}\left (\int \left (a^2+\frac {b^2}{x^2}+\frac {2 a b}{x}\right )^{3/2} x \, dx,x,\sqrt {x}\right ) \\ & = \frac {\left (2 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}}\right ) \text {Subst}\left (\int \left (a b+\frac {b^2}{x}\right )^3 x \, dx,x,\sqrt {x}\right )}{b^2 \left (a b+\frac {b^2}{\sqrt {x}}\right )} \\ & = \frac {\left (2 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}}\right ) \text {Subst}\left (\int \frac {\left (b^2+a b x\right )^3}{x^2} \, dx,x,\sqrt {x}\right )}{b^2 \left (a b+\frac {b^2}{\sqrt {x}}\right )} \\ & = \frac {\left (2 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}}\right ) \text {Subst}\left (\int \left (3 a^2 b^4+\frac {b^6}{x^2}+\frac {3 a b^5}{x}+a^3 b^3 x\right ) \, dx,x,\sqrt {x}\right )}{b^2 \left (a b+\frac {b^2}{\sqrt {x}}\right )} \\ & = -\frac {2 b^4 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}}}{\left (a b+\frac {b^2}{\sqrt {x}}\right ) \sqrt {x}}+\frac {6 a^2 b^2 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} \sqrt {x}}{a b+\frac {b^2}{\sqrt {x}}}+\frac {a^3 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} x}{a+\frac {b}{\sqrt {x}}}+\frac {3 a b^3 \sqrt {a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}} \log (x)}{a b+\frac {b^2}{\sqrt {x}}} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 66, normalized size of antiderivative = 0.37 \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\frac {\sqrt {\frac {\left (b+a \sqrt {x}\right )^2}{x}} \left (-2 b^3+6 a^2 b x+a^3 x^{3/2}+3 a b^2 \sqrt {x} \log (x)\right )}{b+a \sqrt {x}} \]
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Time = 0.17 (sec) , antiderivative size = 65, normalized size of antiderivative = 0.36
method | result | size |
derivativedivides | \(\frac {\left (\frac {a^{2} x +b^{2}+2 a b \sqrt {x}}{x}\right )^{\frac {3}{2}} x \left (a^{3} x^{\frac {3}{2}}+3 b^{2} a \ln \left (x \right ) \sqrt {x}+6 a^{2} b x -2 b^{3}\right )}{\left (a \sqrt {x}+b \right )^{3}}\) | \(65\) |
default | \(\frac {\left (\frac {a^{2} x^{\frac {3}{2}}+b^{2} \sqrt {x}+2 a b x}{x^{\frac {3}{2}}}\right )^{\frac {3}{2}} \left (x^{\frac {5}{2}} a^{3}+3 x^{\frac {3}{2}} \ln \left (x \right ) a \,b^{2}+6 a^{2} b \,x^{2}-2 b^{3} x \right )}{\left (a \sqrt {x}+b \right )^{3}}\) | \(71\) |
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Timed out. \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\text {Timed out} \]
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\[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\int \left (a^{2} + \frac {2 a b}{\sqrt {x}} + \frac {b^{2}}{x}\right )^{\frac {3}{2}}\, dx \]
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\[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\int { {\left (a^{2} + \frac {2 \, a b}{\sqrt {x}} + \frac {b^{2}}{x}\right )}^{\frac {3}{2}} \,d x } \]
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none
Time = 0.44 (sec) , antiderivative size = 80, normalized size of antiderivative = 0.45 \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=a^{3} x \mathrm {sgn}\left (a x + b \sqrt {x}\right ) \mathrm {sgn}\left (x\right ) + 3 \, a b^{2} \log \left ({\left | x \right |}\right ) \mathrm {sgn}\left (a x + b \sqrt {x}\right ) \mathrm {sgn}\left (x\right ) + 6 \, a^{2} b \sqrt {x} \mathrm {sgn}\left (a x + b \sqrt {x}\right ) \mathrm {sgn}\left (x\right ) - \frac {2 \, b^{3} \mathrm {sgn}\left (a x + b \sqrt {x}\right ) \mathrm {sgn}\left (x\right )}{\sqrt {x}} \]
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Timed out. \[ \int \left (a^2+\frac {b^2}{x}+\frac {2 a b}{\sqrt {x}}\right )^{3/2} \, dx=\int {\left (a^2+\frac {b^2}{x}+\frac {2\,a\,b}{\sqrt {x}}\right )}^{3/2} \,d x \]
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