Integrand size = 46, antiderivative size = 235 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=-\frac {i \sqrt {a} \text {RootSum}\left [b^2 c-4 i a b d \text {$\#$1}+2 b c \text {$\#$1}^2+4 i a d \text {$\#$1}^3+c \text {$\#$1}^4\&,\frac {b \log \left (i a x^2+i \sqrt {b+a^2 x^4}+i \sqrt {2} \sqrt {a} x \sqrt {a x^2+\sqrt {b+a^2 x^4}}-\text {$\#$1}\right )-\log \left (i a x^2+i \sqrt {b+a^2 x^4}+i \sqrt {2} \sqrt {a} x \sqrt {a x^2+\sqrt {b+a^2 x^4}}-\text {$\#$1}\right ) \text {$\#$1}^2}{-i a b d+b c \text {$\#$1}+3 i a d \text {$\#$1}^2+c \text {$\#$1}^3}\&\right ]}{\sqrt {2}} \]
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\[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{2 \sqrt {d} \left (\sqrt {d}-\sqrt {-c} x\right ) \sqrt {b+a^2 x^4}}+\frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{2 \sqrt {d} \left (\sqrt {d}+\sqrt {-c} x\right ) \sqrt {b+a^2 x^4}}\right ) \, dx \\ & = \frac {\int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (\sqrt {d}-\sqrt {-c} x\right ) \sqrt {b+a^2 x^4}} \, dx}{2 \sqrt {d}}+\frac {\int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (\sqrt {d}+\sqrt {-c} x\right ) \sqrt {b+a^2 x^4}} \, dx}{2 \sqrt {d}} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 227, normalized size of antiderivative = 0.97 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=-\frac {i \sqrt {a} \text {RootSum}\left [b^2 c-4 i a b d \text {$\#$1}+2 b c \text {$\#$1}^2+4 i a d \text {$\#$1}^3+c \text {$\#$1}^4\&,\frac {b \log \left (i \left (a x^2+\sqrt {b+a^2 x^4}+\sqrt {2} \sqrt {a} x \sqrt {a x^2+\sqrt {b+a^2 x^4}}+i \text {$\#$1}\right )\right )-\log \left (i \left (a x^2+\sqrt {b+a^2 x^4}+\sqrt {2} \sqrt {a} x \sqrt {a x^2+\sqrt {b+a^2 x^4}}+i \text {$\#$1}\right )\right ) \text {$\#$1}^2}{-i a b d+b c \text {$\#$1}+3 i a d \text {$\#$1}^2+c \text {$\#$1}^3}\&\right ]}{\sqrt {2}} \]
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Not integrable
Time = 0.00 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.17
\[\int \frac {\sqrt {a \,x^{2}+\sqrt {a^{2} x^{4}+b}}}{\left (c \,x^{2}+d \right ) \sqrt {a^{2} x^{4}+b}}d x\]
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Timed out. \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\text {Timed out} \]
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Not integrable
Time = 1.02 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.17 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\int \frac {\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{\sqrt {a^{2} x^{4} + b} \left (c x^{2} + d\right )}\, dx \]
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Not integrable
Time = 0.24 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.18 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\int { \frac {\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{\sqrt {a^{2} x^{4} + b} {\left (c x^{2} + d\right )}} \,d x } \]
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Not integrable
Time = 1.02 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.18 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\int { \frac {\sqrt {a x^{2} + \sqrt {a^{2} x^{4} + b}}}{\sqrt {a^{2} x^{4} + b} {\left (c x^{2} + d\right )}} \,d x } \]
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Not integrable
Time = 0.00 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.18 \[ \int \frac {\sqrt {a x^2+\sqrt {b+a^2 x^4}}}{\left (d+c x^2\right ) \sqrt {b+a^2 x^4}} \, dx=\int \frac {\sqrt {\sqrt {a^2\,x^4+b}+a\,x^2}}{\left (c\,x^2+d\right )\,\sqrt {a^2\,x^4+b}} \,d x \]
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