Optimal. Leaf size=37 \[ \frac {\sqrt {\frac {1}{c x+1}} \sqrt {c x+1} \sin ^{-1}(c x)}{c^2}+\frac {\tanh ^{-1}(c x)}{c^2} \]
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Rubi [A] time = 0.11, antiderivative size = 37, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {6341, 6677, 41, 216, 206} \[ \frac {\sqrt {\frac {1}{c x+1}} \sqrt {c x+1} \sin ^{-1}(c x)}{c^2}+\frac {\tanh ^{-1}(c x)}{c^2} \]
Antiderivative was successfully verified.
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Rule 41
Rule 206
Rule 216
Rule 6341
Rule 6677
Rubi steps
\begin {align*} \int \frac {e^{\text {sech}^{-1}(c x)} x}{1-c^2 x^2} \, dx &=\frac {\int \frac {\sqrt {\frac {1}{1+c x}}}{\sqrt {1-c x}} \, dx}{c}+\frac {\int \frac {1}{1-c^2 x^2} \, dx}{c}\\ &=\frac {\tanh ^{-1}(c x)}{c^2}+\frac {\left (\sqrt {\frac {1}{1+c x}} \sqrt {1+c x}\right ) \int \frac {1}{\sqrt {1-c x} \sqrt {1+c x}} \, dx}{c}\\ &=\frac {\tanh ^{-1}(c x)}{c^2}+\frac {\left (\sqrt {\frac {1}{1+c x}} \sqrt {1+c x}\right ) \int \frac {1}{\sqrt {1-c^2 x^2}} \, dx}{c}\\ &=\frac {\sqrt {\frac {1}{1+c x}} \sqrt {1+c x} \sin ^{-1}(c x)}{c^2}+\frac {\tanh ^{-1}(c x)}{c^2}\\ \end {align*}
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Mathematica [C] time = 0.05, size = 68, normalized size = 1.84 \[ -\frac {\log (1-c x)}{2 c^2}+\frac {\log (c x+1)}{2 c^2}+\frac {i \log \left (2 \sqrt {\frac {1-c x}{c x+1}} (c x+1)-2 i c x\right )}{c^2} \]
Warning: Unable to verify antiderivative.
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fricas [B] time = 0.82, size = 53, normalized size = 1.43 \[ -\frac {2 \, \arctan \left (\sqrt {\frac {c x + 1}{c x}} \sqrt {-\frac {c x - 1}{c x}}\right ) - \log \left (c x + 1\right ) + \log \left (c x - 1\right )}{2 \, c^{2}} \]
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 \[ \int -\frac {x {\left (\sqrt {\frac {1}{c x} + 1} \sqrt {\frac {1}{c x} - 1} + \frac {1}{c x}\right )}}{c^{2} x^{2} - 1}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [C] time = 0.08, size = 92, normalized size = 2.49 \[ \frac {\sqrt {-\frac {c x -1}{c x}}\, x \sqrt {\frac {c x +1}{c x}}\, \arctan \left (\frac {\mathrm {csgn}\relax (c ) c x}{\sqrt {-\left (c x -1\right ) \left (c x +1\right )}}\right ) \mathrm {csgn}\relax (c )}{\sqrt {-c^{2} x^{2}+1}\, c}+\frac {\ln \left (c x +1\right )}{2 c^{2}}-\frac {\ln \left (c x -1\right )}{2 c^{2}} \]
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 \[ \frac {\log \left (c x + 1\right )}{2 \, c^{2}} - \frac {\log \left (c x - 1\right )}{2 \, c^{2}} - \int \frac {\sqrt {c x + 1} \sqrt {-c x + 1}}{c^{3} x^{2} - c}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 3.57, size = 84, normalized size = 2.27 \[ \frac {\mathrm {atanh}\left (c\,x\right )}{c^2}+\frac {\left (\ln \left (\frac {{\left (\sqrt {\frac {1}{c\,x}-1}-\mathrm {i}\right )}^2}{{\left (\sqrt {\frac {1}{c\,x}+1}-1\right )}^2}+1\right )-\ln \left (\frac {\sqrt {\frac {1}{c\,x}-1}-\mathrm {i}}{\sqrt {\frac {1}{c\,x}+1}-1}\right )\right )\,1{}\mathrm {i}}{c^2} \]
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 \[ - \frac {\int \frac {c x \sqrt {-1 + \frac {1}{c x}} \sqrt {1 + \frac {1}{c x}}}{c^{2} x^{2} - 1}\, dx + \int \frac {1}{c^{2} x^{2} - 1}\, dx}{c} \]
Verification of antiderivative is not currently implemented for this CAS.
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