Optimal. Leaf size=642 \[ \frac{\text{PolyLog}\left (2,-\frac{(-a-b x+i) \left (b \sqrt{c}-i a \sqrt{d}\right )}{(a+b x) \left (b \sqrt{c}-(1+i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}-\frac{\text{PolyLog}\left (2,-\frac{(-a-b x+i) \left (b \sqrt{c}+i a \sqrt{d}\right )}{(a+b x) \left (b \sqrt{c}+(1+i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}-\frac{\text{PolyLog}\left (2,\frac{(a+b x+i) \left (b \sqrt{c}-i a \sqrt{d}\right )}{(a+b x) \left (b \sqrt{c}+(1-i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}+\frac{\text{PolyLog}\left (2,\frac{(a+b x+i) \left (b \sqrt{c}+i a \sqrt{d}\right )}{(a+b x) \left (b \sqrt{c}+i (a+i) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}-\frac{\log \left (\frac{a+b x+i}{a+b x}\right ) \log \left (-\frac{b \left (-\sqrt{d} x+i \sqrt{c}\right )}{(a+b x) \left (b \sqrt{c}+(1-i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}+\frac{\log \left (-\frac{-a-b x+i}{a+b x}\right ) \log \left (\frac{i b \left (\sqrt{c}+i \sqrt{d} x\right )}{(a+b x) \left (b \sqrt{c}-(1+i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}-\frac{\log \left (-\frac{-a-b x+i}{a+b x}\right ) \log \left (\frac{b \left (\sqrt{d} x+i \sqrt{c}\right )}{(a+b x) \left (b \sqrt{c}+(1+i a) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}}+\frac{\log \left (\frac{a+b x+i}{a+b x}\right ) \log \left (-\frac{b \left (\sqrt{d} x+i \sqrt{c}\right )}{(a+b x) \left (b \sqrt{c}+i (a+i) \sqrt{d}\right )}\right )}{4 \sqrt{c} \sqrt{d}} \]
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Rubi [A] time = 0.997957, antiderivative size = 655, normalized size of antiderivative = 1.02, number of steps used = 37, number of rules used = 7, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.438, Rules used = {5052, 2513, 2409, 2394, 2393, 2391, 205} \[ \frac{i \text{PolyLog}\left (2,-\frac{\sqrt{d} (-a-b x+i)}{b \sqrt{-c}-(-a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \text{PolyLog}\left (2,\frac{\sqrt{d} (-a-b x+i)}{b \sqrt{-c}+(-a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \text{PolyLog}\left (2,-\frac{\sqrt{d} (a+b x+i)}{b \sqrt{-c}-(a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \text{PolyLog}\left (2,\frac{\sqrt{d} (a+b x+i)}{b \sqrt{-c}+(a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \log (a+b x-i) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}-(-a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (a+b x+i) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (a+b x-i) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}+(-a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \log (a+b x+i) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(a+i) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \left (\log \left (-\frac{-a-b x+i}{a+b x}\right )+\log (a+b x)-\log (a+b x-i)\right ) \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \left (\log (a+b x)-\log (a+b x+i)+\log \left (\frac{a+b x+i}{a+b x}\right )\right ) \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right )}{2 \sqrt{c} \sqrt{d}} \]
Warning: Unable to verify antiderivative.
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Rule 5052
Rule 2513
Rule 2409
Rule 2394
Rule 2393
Rule 2391
Rule 205
Rubi steps
\begin{align*} \int \frac{\cot ^{-1}(a+b x)}{c+d x^2} \, dx &=\frac{1}{2} i \int \frac{\log \left (\frac{-i+a+b x}{a+b x}\right )}{c+d x^2} \, dx-\frac{1}{2} i \int \frac{\log \left (\frac{i+a+b x}{a+b x}\right )}{c+d x^2} \, dx\\ &=\frac{1}{2} i \int \frac{\log (-i+a+b x)}{c+d x^2} \, dx-\frac{1}{2} i \int \frac{\log (i+a+b x)}{c+d x^2} \, dx-\frac{1}{2} \left (i \left (-\log (a+b x)+\log (-i+a+b x)-\log \left (\frac{-i+a+b x}{a+b x}\right )\right )\right ) \int \frac{1}{c+d x^2} \, dx+\frac{1}{2} \left (i \left (-\log (a+b x)+\log (i+a+b x)-\log \left (\frac{i+a+b x}{a+b x}\right )\right )\right ) \int \frac{1}{c+d x^2} \, dx\\ &=\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log \left (-\frac{i-a-b x}{a+b x}\right )+\log (a+b x)-\log (-i+a+b x)\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log (a+b x)-\log (i+a+b x)+\log \left (\frac{i+a+b x}{a+b x}\right )\right )}{2 \sqrt{c} \sqrt{d}}+\frac{1}{2} i \int \left (\frac{\sqrt{-c} \log (-i+a+b x)}{2 c \left (\sqrt{-c}-\sqrt{d} x\right )}+\frac{\sqrt{-c} \log (-i+a+b x)}{2 c \left (\sqrt{-c}+\sqrt{d} x\right )}\right ) \, dx-\frac{1}{2} i \int \left (\frac{\sqrt{-c} \log (i+a+b x)}{2 c \left (\sqrt{-c}-\sqrt{d} x\right )}+\frac{\sqrt{-c} \log (i+a+b x)}{2 c \left (\sqrt{-c}+\sqrt{d} x\right )}\right ) \, dx\\ &=\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log \left (-\frac{i-a-b x}{a+b x}\right )+\log (a+b x)-\log (-i+a+b x)\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log (a+b x)-\log (i+a+b x)+\log \left (\frac{i+a+b x}{a+b x}\right )\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \int \frac{\log (-i+a+b x)}{\sqrt{-c}-\sqrt{d} x} \, dx}{4 \sqrt{-c}}-\frac{i \int \frac{\log (-i+a+b x)}{\sqrt{-c}+\sqrt{d} x} \, dx}{4 \sqrt{-c}}+\frac{i \int \frac{\log (i+a+b x)}{\sqrt{-c}-\sqrt{d} x} \, dx}{4 \sqrt{-c}}+\frac{i \int \frac{\log (i+a+b x)}{\sqrt{-c}+\sqrt{d} x} \, dx}{4 \sqrt{-c}}\\ &=\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log \left (-\frac{i-a-b x}{a+b x}\right )+\log (a+b x)-\log (-i+a+b x)\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log (a+b x)-\log (i+a+b x)+\log \left (\frac{i+a+b x}{a+b x}\right )\right )}{2 \sqrt{c} \sqrt{d}}+\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}-(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}+(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{(i b) \int \frac{\log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(-i+a) \sqrt{d}}\right )}{-i+a+b x} \, dx}{4 \sqrt{-c} \sqrt{d}}+\frac{(i b) \int \frac{\log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{i+a+b x} \, dx}{4 \sqrt{-c} \sqrt{d}}+\frac{(i b) \int \frac{\log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(-i+a) \sqrt{d}}\right )}{-i+a+b x} \, dx}{4 \sqrt{-c} \sqrt{d}}-\frac{(i b) \int \frac{\log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{i+a+b x} \, dx}{4 \sqrt{-c} \sqrt{d}}\\ &=\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log \left (-\frac{i-a-b x}{a+b x}\right )+\log (a+b x)-\log (-i+a+b x)\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log (a+b x)-\log (i+a+b x)+\log \left (\frac{i+a+b x}{a+b x}\right )\right )}{2 \sqrt{c} \sqrt{d}}+\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}-(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}+(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{\sqrt{d} x}{b \sqrt{-c}-(-i+a) \sqrt{d}}\right )}{x} \, dx,x,-i+a+b x\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1-\frac{\sqrt{d} x}{b \sqrt{-c}+(-i+a) \sqrt{d}}\right )}{x} \, dx,x,-i+a+b x\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{\sqrt{d} x}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{x} \, dx,x,i+a+b x\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1-\frac{\sqrt{d} x}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{x} \, dx,x,i+a+b x\right )}{4 \sqrt{-c} \sqrt{d}}\\ &=\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log \left (-\frac{i-a-b x}{a+b x}\right )+\log (a+b x)-\log (-i+a+b x)\right )}{2 \sqrt{c} \sqrt{d}}-\frac{i \tan ^{-1}\left (\frac{\sqrt{d} x}{\sqrt{c}}\right ) \left (\log (a+b x)-\log (i+a+b x)+\log \left (\frac{i+a+b x}{a+b x}\right )\right )}{2 \sqrt{c} \sqrt{d}}+\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}-(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \log (-i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}+(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \log (i+a+b x) \log \left (\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \text{Li}_2\left (-\frac{\sqrt{d} (i-a-b x)}{b \sqrt{-c}-(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \text{Li}_2\left (\frac{\sqrt{d} (i-a-b x)}{b \sqrt{-c}+(i-a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}+\frac{i \text{Li}_2\left (-\frac{\sqrt{d} (i+a+b x)}{b \sqrt{-c}-(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}-\frac{i \text{Li}_2\left (\frac{\sqrt{d} (i+a+b x)}{b \sqrt{-c}+(i+a) \sqrt{d}}\right )}{4 \sqrt{-c} \sqrt{d}}\\ \end{align*}
Mathematica [A] time = 0.548539, size = 563, normalized size = 0.88 \[ -\frac{i \left (\text{PolyLog}\left (2,\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(a-i) \sqrt{d}}\right )-\text{PolyLog}\left (2,\frac{b \left (\sqrt{-c}-\sqrt{d} x\right )}{b \sqrt{-c}+(a+i) \sqrt{d}}\right )-\text{PolyLog}\left (2,\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(a-i) \sqrt{d}}\right )+\text{PolyLog}\left (2,\frac{b \left (\sqrt{-c}+\sqrt{d} x\right )}{b \sqrt{-c}-(a+i) \sqrt{d}}\right )+\log \left (\sqrt{-c}-\sqrt{d} x\right ) \log \left (\frac{\sqrt{d} (a+b x-i)}{b \sqrt{-c}+(a-i) \sqrt{d}}\right )-\log \left (\frac{a+b x-i}{a+b x}\right ) \log \left (\sqrt{-c}-\sqrt{d} x\right )-\log \left (\sqrt{-c}-\sqrt{d} x\right ) \log \left (\frac{\sqrt{d} (a+b x+i)}{b \sqrt{-c}+(a+i) \sqrt{d}}\right )+\log \left (\frac{a+b x+i}{a+b x}\right ) \log \left (\sqrt{-c}-\sqrt{d} x\right )-\log \left (\sqrt{-c}+\sqrt{d} x\right ) \log \left (-\frac{\sqrt{d} (a+b x-i)}{b \sqrt{-c}-(a-i) \sqrt{d}}\right )+\log \left (\frac{a+b x-i}{a+b x}\right ) \log \left (\sqrt{-c}+\sqrt{d} x\right )+\log \left (\sqrt{-c}+\sqrt{d} x\right ) \log \left (-\frac{\sqrt{d} (a+b x+i)}{b \sqrt{-c}-(a+i) \sqrt{d}}\right )-\log \left (\frac{a+b x+i}{a+b x}\right ) \log \left (\sqrt{-c}+\sqrt{d} x\right )\right )}{4 \sqrt{-c} \sqrt{d}} \]
Warning: Unable to verify antiderivative.
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Maple [B] time = 0.814, size = 2082, normalized size = 3.2 \begin{align*} \text{result too large to display} \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 [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\operatorname{arccot}\left (b x + a\right )}{d x^{2} + c}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [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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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\operatorname{arccot}\left (b x + a\right )}{d x^{2} + c}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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