Integrand size = 33, antiderivative size = 22 \[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\frac {2 x}{\sqrt {b+\sqrt {b^2+a x^2}}} \]
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\[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00 \[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\frac {2 x}{\sqrt {b+\sqrt {b^2+a x^2}}} \]
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\[\int \frac {\sqrt {b +\sqrt {a \,x^{2}+b^{2}}}}{\sqrt {a \,x^{2}+b^{2}}}d x\]
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Leaf count of result is larger than twice the leaf count of optimal. 38 vs. \(2 (18) = 36\).
Time = 0.28 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.73 \[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=-\frac {2 \, \sqrt {b + \sqrt {a x^{2} + b^{2}}} {\left (b - \sqrt {a x^{2} + b^{2}}\right )}}{a x} \]
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Leaf count of result is larger than twice the leaf count of optimal. 41 vs. \(2 (19) = 38\).
Time = 0.44 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.86 \[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\frac {\sqrt {2} x \Gamma \left (\frac {1}{4}\right ) \Gamma \left (\frac {3}{4}\right )}{\pi \sqrt {b} \sqrt {\sqrt {\frac {a x^{2}}{b^{2}} + 1} + 1}} \]
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\[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\int { \frac {\sqrt {b + \sqrt {a x^{2} + b^{2}}}}{\sqrt {a x^{2} + b^{2}}} \,d x } \]
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\[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\int { \frac {\sqrt {b + \sqrt {a x^{2} + b^{2}}}}{\sqrt {a x^{2} + b^{2}}} \,d x } \]
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Timed out. \[ \int \frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {b^2+a x^2}} \, dx=\int \frac {\sqrt {b+\sqrt {b^2+a\,x^2}}}{\sqrt {b^2+a\,x^2}} \,d x \]
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