Optimal. Leaf size=66 \[ -\frac {a x \sqrt {c-a^2 c x^2}}{\sqrt {1-a^2 x^2}}+\frac {\sqrt {c-a^2 c x^2} \log (x)}{\sqrt {1-a^2 x^2}} \]
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Rubi [A]
time = 0.13, antiderivative size = 66, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 27, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {6288, 6285, 45}
\begin {gather*} \frac {\log (x) \sqrt {c-a^2 c x^2}}{\sqrt {1-a^2 x^2}}-\frac {a x \sqrt {c-a^2 c x^2}}{\sqrt {1-a^2 x^2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 6285
Rule 6288
Rubi steps
\begin {align*} \int \frac {e^{-\tanh ^{-1}(a x)} \sqrt {c-a^2 c x^2}}{x} \, dx &=\frac {\sqrt {c-a^2 c x^2} \int \frac {e^{-\tanh ^{-1}(a x)} \sqrt {1-a^2 x^2}}{x} \, dx}{\sqrt {1-a^2 x^2}}\\ &=\frac {\sqrt {c-a^2 c x^2} \int \frac {1-a x}{x} \, dx}{\sqrt {1-a^2 x^2}}\\ &=\frac {\sqrt {c-a^2 c x^2} \int \left (-a+\frac {1}{x}\right ) \, dx}{\sqrt {1-a^2 x^2}}\\ &=-\frac {a x \sqrt {c-a^2 c x^2}}{\sqrt {1-a^2 x^2}}+\frac {\sqrt {c-a^2 c x^2} \log (x)}{\sqrt {1-a^2 x^2}}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 37, normalized size = 0.56 \begin {gather*} \frac {\sqrt {c-a^2 c x^2} (-a x+\log (x))}{\sqrt {1-a^2 x^2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.06, size = 47, normalized size = 0.71
method | result | size |
default | \(\frac {\left (a x -\ln \left (x \right )\right ) \sqrt {-c \left (a^{2} x^{2}-1\right )}\, \sqrt {-a^{2} x^{2}+1}}{a^{2} x^{2}-1}\) | \(47\) |
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 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 121 vs.
\(2 (58) = 116\).
time = 0.38, size = 261, normalized size = 3.95 \begin {gather*} \left [\frac {{\left (a^{2} x^{2} - 1\right )} \sqrt {c} \log \left (\frac {a^{2} c x^{6} + a^{2} c x^{2} - c x^{4} - \sqrt {-a^{2} c x^{2} + c} \sqrt {-a^{2} x^{2} + 1} {\left (x^{4} - 1\right )} \sqrt {c} - c}{a^{2} x^{4} - x^{2}}\right ) + 2 \, \sqrt {-a^{2} c x^{2} + c} \sqrt {-a^{2} x^{2} + 1} {\left (a x - a\right )}}{2 \, {\left (a^{2} x^{2} - 1\right )}}, \frac {{\left (a^{2} x^{2} - 1\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {-a^{2} c x^{2} + c} \sqrt {-a^{2} x^{2} + 1} {\left (x^{2} + 1\right )} \sqrt {-c}}{a^{2} c x^{4} - {\left (a^{2} + 1\right )} c x^{2} + c}\right ) + \sqrt {-a^{2} c x^{2} + c} \sqrt {-a^{2} x^{2} + 1} {\left (a x - a\right )}}{a^{2} x^{2} - 1}\right ] \end {gather*}
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 \begin {gather*} \int \frac {\sqrt {- \left (a x - 1\right ) \left (a x + 1\right )} \sqrt {- c \left (a x - 1\right ) \left (a x + 1\right )}}{x \left (a x + 1\right )}\, dx \end {gather*}
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 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.02 \begin {gather*} \int \frac {\sqrt {c-a^2\,c\,x^2}\,\sqrt {1-a^2\,x^2}}{x\,\left (a\,x+1\right )} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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