Optimal. Leaf size=107 \[ \frac{(a c-d)^2 \tan ^{-1}\left (\frac{a^2 c x+d}{\sqrt{1-a^2 x^2} \sqrt{a^2 c^2-d^2}}\right )}{d^2 \sqrt{a^2 c^2-d^2}}-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a c-2 d) \sin ^{-1}(a x)}{d^2} \]
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Rubi [A] time = 0.179428, antiderivative size = 107, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 29, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.172, Rules used = {1654, 844, 216, 725, 204} \[ \frac{(a c-d)^2 \tan ^{-1}\left (\frac{a^2 c x+d}{\sqrt{1-a^2 x^2} \sqrt{a^2 c^2-d^2}}\right )}{d^2 \sqrt{a^2 c^2-d^2}}-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a c-2 d) \sin ^{-1}(a x)}{d^2} \]
Antiderivative was successfully verified.
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Rule 1654
Rule 844
Rule 216
Rule 725
Rule 204
Rubi steps
\begin{align*} \int \frac{(1+a x)^2}{(c+d x) \sqrt{1-a^2 x^2}} \, dx &=-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{\int \frac{-a^2 d^2+a^3 (a c-2 d) d x}{(c+d x) \sqrt{1-a^2 x^2}} \, dx}{a^2 d^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a (a c-2 d)) \int \frac{1}{\sqrt{1-a^2 x^2}} \, dx}{d^2}+\frac{(a c-d)^2 \int \frac{1}{(c+d x) \sqrt{1-a^2 x^2}} \, dx}{d^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a c-2 d) \sin ^{-1}(a x)}{d^2}-\frac{(a c-d)^2 \operatorname{Subst}\left (\int \frac{1}{-a^2 c^2+d^2-x^2} \, dx,x,\frac{d+a^2 c x}{\sqrt{1-a^2 x^2}}\right )}{d^2}\\ &=-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a c-2 d) \sin ^{-1}(a x)}{d^2}+\frac{(a c-d)^2 \tan ^{-1}\left (\frac{d+a^2 c x}{\sqrt{a^2 c^2-d^2} \sqrt{1-a^2 x^2}}\right )}{d^2 \sqrt{a^2 c^2-d^2}}\\ \end{align*}
Mathematica [A] time = 0.108653, size = 120, normalized size = 1.12 \[ \frac{(a c-d) \sqrt{a^2 c^2-d^2} \tan ^{-1}\left (\frac{a^2 c x+d}{\sqrt{1-a^2 x^2} \sqrt{a^2 c^2-d^2}}\right )}{d^2 (a c+d)}-\frac{\sqrt{1-a^2 x^2}}{d}-\frac{(a c-d) \sin ^{-1}(a x)}{d^2}+\frac{\sin ^{-1}(a x)}{d} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.23, size = 524, normalized size = 4.9 \begin{align*} -{\frac{1}{d}\sqrt{-{a}^{2}{x}^{2}+1}}-{\frac{{a}^{2}c}{{d}^{2}}\arctan \left ({x\sqrt{{a}^{2}}{\frac{1}{\sqrt{-{a}^{2}{x}^{2}+1}}}} \right ){\frac{1}{\sqrt{{a}^{2}}}}}+2\,{\frac{a}{d\sqrt{{a}^{2}}}\arctan \left ({\frac{\sqrt{{a}^{2}}x}{\sqrt{-{a}^{2}{x}^{2}+1}}} \right ) }-{\frac{{a}^{2}{c}^{2}}{{d}^{3}}\ln \left ({ \left ( -2\,{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }+2\,\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}\sqrt{- \left ( x+{\frac{c}{d}} \right ) ^{2}{a}^{2}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}} \right ) \left ( x+{\frac{c}{d}} \right ) ^{-1}} \right ){\frac{1}{\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}}}}+2\,{\frac{ac}{{d}^{2}}\ln \left ({ \left ( -2\,{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }+2\,\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}\sqrt{- \left ( x+{\frac{c}{d}} \right ) ^{2}{a}^{2}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}} \right ) \left ( x+{\frac{c}{d}} \right ) ^{-1}} \right ){\frac{1}{\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}}}}-{\frac{1}{d}\ln \left ({ \left ( -2\,{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }+2\,\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}\sqrt{- \left ( x+{\frac{c}{d}} \right ) ^{2}{a}^{2}+2\,{\frac{{a}^{2}c}{d} \left ( x+{\frac{c}{d}} \right ) }-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}} \right ) \left ( x+{\frac{c}{d}} \right ) ^{-1}} \right ){\frac{1}{\sqrt{-{\frac{{a}^{2}{c}^{2}-{d}^{2}}{{d}^{2}}}}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 3.19296, size = 679, normalized size = 6.35 \begin{align*} \left [-\frac{{\left (a c - d\right )} \sqrt{-\frac{a c - d}{a c + d}} \log \left (\frac{a^{2} c d x + d^{2} -{\left (a^{2} c^{2} - d^{2}\right )} \sqrt{-a^{2} x^{2} + 1} -{\left (a c d + d^{2} +{\left (a^{3} c^{2} + a^{2} c d\right )} x + \sqrt{-a^{2} x^{2} + 1}{\left (a c d + d^{2}\right )}\right )} \sqrt{-\frac{a c - d}{a c + d}}}{d x + c}\right ) - 2 \,{\left (a c - 2 \, d\right )} \arctan \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{a x}\right ) + \sqrt{-a^{2} x^{2} + 1} d}{d^{2}}, \frac{2 \,{\left (a c - d\right )} \sqrt{\frac{a c - d}{a c + d}} \arctan \left (\frac{{\left (d x - \sqrt{-a^{2} x^{2} + 1} c + c\right )} \sqrt{\frac{a c - d}{a c + d}}}{{\left (a c - d\right )} x}\right ) + 2 \,{\left (a c - 2 \, d\right )} \arctan \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{a x}\right ) - \sqrt{-a^{2} x^{2} + 1} d}{d^{2}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (a x + 1\right )^{2}}{\sqrt{- \left (a x - 1\right ) \left (a x + 1\right )} \left (c + d x\right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.34627, size = 177, normalized size = 1.65 \begin{align*} -\frac{{\left (a^{2} c - 2 \, a d\right )} \arcsin \left (a x\right ) \mathrm{sgn}\left (a\right )}{d^{2}{\left | a \right |}} - \frac{\sqrt{-a^{2} x^{2} + 1}}{d} - \frac{2 \,{\left (a^{3} c^{2} - 2 \, a^{2} c d + a d^{2}\right )} \arctan \left (\frac{d + \frac{{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )} c}{a x}}{\sqrt{a^{2} c^{2} - d^{2}}}\right )}{\sqrt{a^{2} c^{2} - d^{2}} d^{2}{\left | a \right |}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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