Optimal. Leaf size=30 \[ \frac {\sqrt {x^2-1} \sqrt {x^2+1} \sinh ^{-1}(x)}{\sqrt {x^4-1}} \]
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Rubi [A] time = 0.01, antiderivative size = 30, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {1152, 215} \[ \frac {\sqrt {x^2-1} \sqrt {x^2+1} \sinh ^{-1}(x)}{\sqrt {x^4-1}} \]
Antiderivative was successfully verified.
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Rule 215
Rule 1152
Rubi steps
\begin {align*} \int \frac {\sqrt {-1+x^2}}{\sqrt {-1+x^4}} \, dx &=\frac {\left (\sqrt {-1+x^2} \sqrt {1+x^2}\right ) \int \frac {1}{\sqrt {1+x^2}} \, dx}{\sqrt {-1+x^4}}\\ &=\frac {\sqrt {-1+x^2} \sqrt {1+x^2} \sinh ^{-1}(x)}{\sqrt {-1+x^4}}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 38, normalized size = 1.27 \[ \log \left (x^3+\sqrt {x^2-1} \sqrt {x^4-1}-x\right )-\log \left (1-x^2\right ) \]
Antiderivative was successfully verified.
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fricas [B] time = 0.95, size = 73, normalized size = 2.43 \[ \frac {1}{2} \, \log \left (\frac {x^{3} + \sqrt {x^{4} - 1} \sqrt {x^{2} - 1} - x}{x^{3} - x}\right ) - \frac {1}{2} \, \log \left (-\frac {x^{3} - \sqrt {x^{4} - 1} \sqrt {x^{2} - 1} - x}{x^{3} - x}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\sqrt {x^{2} - 1}}{\sqrt {x^{4} - 1}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 25, normalized size = 0.83 \[ \frac {\sqrt {x^{4}-1}\, \arcsinh \relax (x )}{\sqrt {x^{2}-1}\, \sqrt {x^{2}+1}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\sqrt {x^{2} - 1}}{\sqrt {x^{4} - 1}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.03 \[ \int \frac {\sqrt {x^2-1}}{\sqrt {x^4-1}} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\sqrt {\left (x - 1\right ) \left (x + 1\right )}}{\sqrt {\left (x - 1\right ) \left (x + 1\right ) \left (x^{2} + 1\right )}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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