Optimal. Leaf size=484 \[ -\frac{\sqrt{-a \left (2 c-\sqrt{a^2-2 a c+b^2+c^2}\right )+c \left (c-\sqrt{a^2-2 a c+b^2+c^2}\right )+a^2+b^2} \tan ^{-1}\left (\frac{b \sqrt{a^2-2 a c+b^2+c^2}-x \left ((a-c) \left (\sqrt{a^2-2 a c+b^2+c^2}+a-c\right )+b^2\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2} \sqrt{-a \left (2 c-\sqrt{a^2-2 a c+b^2+c^2}\right )+c \left (c-\sqrt{a^2-2 a c+b^2+c^2}\right )+a^2+b^2} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2}}-\frac{\sqrt{-a \left (\sqrt{a^2-2 a c+b^2+c^2}+2 c\right )+c \left (\sqrt{a^2-2 a c+b^2+c^2}+c\right )+a^2+b^2} \tanh ^{-1}\left (\frac{x \left ((a-c) \left (-\sqrt{a^2-2 a c+b^2+c^2}+a-c\right )+b^2\right )+b \sqrt{a^2-2 a c+b^2+c^2}}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2} \sqrt{-a \left (\sqrt{a^2-2 a c+b^2+c^2}+2 c\right )+c \left (\sqrt{a^2-2 a c+b^2+c^2}+c\right )+a^2+b^2} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2}} \]
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Rubi [A] time = 23.581, antiderivative size = 484, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 30, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.133, Rules used = {1036, 1030, 208, 205} \[ -\frac{\sqrt{-a \left (2 c-\sqrt{a^2-2 a c+b^2+c^2}\right )+c \left (c-\sqrt{a^2-2 a c+b^2+c^2}\right )+a^2+b^2} \tan ^{-1}\left (\frac{b \sqrt{a^2-2 a c+b^2+c^2}-x \left ((a-c) \left (\sqrt{a^2-2 a c+b^2+c^2}+a-c\right )+b^2\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2} \sqrt{-a \left (2 c-\sqrt{a^2-2 a c+b^2+c^2}\right )+c \left (c-\sqrt{a^2-2 a c+b^2+c^2}\right )+a^2+b^2} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2}}-\frac{\sqrt{-a \left (\sqrt{a^2-2 a c+b^2+c^2}+2 c\right )+c \left (\sqrt{a^2-2 a c+b^2+c^2}+c\right )+a^2+b^2} \tanh ^{-1}\left (\frac{x \left ((a-c) \left (-\sqrt{a^2-2 a c+b^2+c^2}+a-c\right )+b^2\right )+b \sqrt{a^2-2 a c+b^2+c^2}}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2} \sqrt{-a \left (\sqrt{a^2-2 a c+b^2+c^2}+2 c\right )+c \left (\sqrt{a^2-2 a c+b^2+c^2}+c\right )+a^2+b^2} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2-2 a c+b^2+c^2}} \]
Antiderivative was successfully verified.
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Rule 1036
Rule 1030
Rule 208
Rule 205
Rubi steps
\begin{align*} \int \frac{a-c+b x}{\left (1+x^2\right ) \sqrt{a+b x+c x^2}} \, dx &=-\frac{\int \frac{-b^2-(a-c) \left (a-c+\sqrt{a^2+b^2-2 a c+c^2}\right )-b \sqrt{a^2+b^2-2 a c+c^2} x}{\left (1+x^2\right ) \sqrt{a+b x+c x^2}} \, dx}{2 \sqrt{a^2+b^2-2 a c+c^2}}+\frac{\int \frac{-b^2-(a-c) \left (a-c-\sqrt{a^2+b^2-2 a c+c^2}\right )+b \sqrt{a^2+b^2-2 a c+c^2} x}{\left (1+x^2\right ) \sqrt{a+b x+c x^2}} \, dx}{2 \sqrt{a^2+b^2-2 a c+c^2}}\\ &=\left (b \left (b^2+(a-c) \left (a-c-\sqrt{a^2+b^2-2 a c+c^2}\right )\right )\right ) \operatorname{Subst}\left (\int \frac{1}{-2 b \sqrt{a^2+b^2-2 a c+c^2} \left (b^2+(a-c) \left (a-c-\sqrt{a^2+b^2-2 a c+c^2}\right )\right )+b x^2} \, dx,x,\frac{b \sqrt{a^2+b^2-2 a c+c^2}+\left (b^2+(a-c) \left (a-c-\sqrt{a^2+b^2-2 a c+c^2}\right )\right ) x}{\sqrt{a+b x+c x^2}}\right )+\left (b \left (b^2+(a-c) \left (a-c+\sqrt{a^2+b^2-2 a c+c^2}\right )\right )\right ) \operatorname{Subst}\left (\int \frac{1}{2 b \sqrt{a^2+b^2-2 a c+c^2} \left (b^2+(a-c) \left (a-c+\sqrt{a^2+b^2-2 a c+c^2}\right )\right )+b x^2} \, dx,x,\frac{-b \sqrt{a^2+b^2-2 a c+c^2}+\left (b^2+(a-c) \left (a-c+\sqrt{a^2+b^2-2 a c+c^2}\right )\right ) x}{\sqrt{a+b x+c x^2}}\right )\\ &=-\frac{\sqrt{a^2+b^2+c \left (c-\sqrt{a^2+b^2-2 a c+c^2}\right )-a \left (2 c-\sqrt{a^2+b^2-2 a c+c^2}\right )} \tan ^{-1}\left (\frac{b \sqrt{a^2+b^2-2 a c+c^2}-\left (b^2+(a-c) \left (a-c+\sqrt{a^2+b^2-2 a c+c^2}\right )\right ) x}{\sqrt{2} \sqrt [4]{a^2+b^2-2 a c+c^2} \sqrt{a^2+b^2+c \left (c-\sqrt{a^2+b^2-2 a c+c^2}\right )-a \left (2 c-\sqrt{a^2+b^2-2 a c+c^2}\right )} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2+b^2-2 a c+c^2}}-\frac{\sqrt{a^2+b^2+c \left (c+\sqrt{a^2+b^2-2 a c+c^2}\right )-a \left (2 c+\sqrt{a^2+b^2-2 a c+c^2}\right )} \tanh ^{-1}\left (\frac{b \sqrt{a^2+b^2-2 a c+c^2}+\left (b^2+(a-c) \left (a-c-\sqrt{a^2+b^2-2 a c+c^2}\right )\right ) x}{\sqrt{2} \sqrt [4]{a^2+b^2-2 a c+c^2} \sqrt{a^2+b^2+c \left (c+\sqrt{a^2+b^2-2 a c+c^2}\right )-a \left (2 c+\sqrt{a^2+b^2-2 a c+c^2}\right )} \sqrt{a+b x+c x^2}}\right )}{\sqrt{2} \sqrt [4]{a^2+b^2-2 a c+c^2}}\\ \end{align*}
Mathematica [C] time = 0.0869691, size = 136, normalized size = 0.28 \[ \frac{1}{2} i \left (\sqrt{a+i b-c} \tanh ^{-1}\left (\frac{2 a+b (x+i)+2 i c x}{2 \sqrt{a+i b-c} \sqrt{a+x (b+c x)}}\right )-\sqrt{a-i b-c} \tanh ^{-1}\left (\frac{2 a+b (x-i)-2 i c x}{2 \sqrt{a-i b-c} \sqrt{a+x (b+c x)}}\right )\right ) \]
Antiderivative was successfully verified.
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Maple [B] time = 0.901, size = 6871419, normalized size = 14197.2 \begin{align*} \text{output too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{b x + a - c}{\sqrt{c x^{2} + b x + a}{\left (x^{2} + 1\right )}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \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{a + b x - c}{\left (x^{2} + 1\right ) \sqrt{a + b x + c x^{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: TypeError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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