Integrand size = 12, antiderivative size = 370 \[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=-\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\frac {b^2 \log (x)}{\left (1-a^2\right )^2}+\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1-a-b x}\right )}{2 (1-a)^2}-\frac {b^2 \log (1-a-b x)}{2 (1-a)^2 (1+a)}-\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{2 (1+a)^2}-\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}+\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}-\frac {b^2 \log (1+a+b x)}{2 (1-a) (1+a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,-\frac {1+a+b x}{1-a-b x}\right )}{4 (1-a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{4 (1+a)^2}+\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}-\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2} \]
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Time = 0.67 (sec) , antiderivative size = 370, normalized size of antiderivative = 1.00, number of steps used = 21, number of rules used = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 1.333, Rules used = {6245, 378, 724, 815, 6873, 6257, 6857, 6064, 720, 31, 647, 6058, 2449, 2352, 2497, 6056} \[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{a+b x+1}\right )}{\left (1-a^2\right )^2}-\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2 b x}{(1-a) (a+b x+1)}\right )}{\left (1-a^2\right )^2}+\frac {b^2 \log (x)}{\left (1-a^2\right )^2}-\frac {2 a b^2 \log \left (\frac {2}{a+b x+1}\right ) \coth ^{-1}(a+b x)}{\left (1-a^2\right )^2}+\frac {2 a b^2 \log \left (\frac {2 b x}{(1-a) (a+b x+1)}\right ) \coth ^{-1}(a+b x)}{\left (1-a^2\right )^2}-\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}+\frac {b^2 \operatorname {PolyLog}\left (2,-\frac {a+b x+1}{-a-b x+1}\right )}{4 (1-a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{a+b x+1}\right )}{4 (a+1)^2}-\frac {b^2 \log (-a-b x+1)}{2 (1-a)^2 (a+1)}-\frac {b^2 \log (a+b x+1)}{2 (1-a) (a+1)^2}+\frac {b^2 \log \left (\frac {2}{-a-b x+1}\right ) \coth ^{-1}(a+b x)}{2 (1-a)^2}-\frac {b^2 \log \left (\frac {2}{a+b x+1}\right ) \coth ^{-1}(a+b x)}{2 (a+1)^2}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2} \]
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Rule 31
Rule 378
Rule 647
Rule 720
Rule 724
Rule 815
Rule 2352
Rule 2449
Rule 2497
Rule 6056
Rule 6058
Rule 6064
Rule 6245
Rule 6257
Rule 6857
Rule 6873
Rubi steps \begin{align*} \text {integral}& = -\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+b \int \frac {\coth ^{-1}(a+b x)}{x^2 \left (1-(a+b x)^2\right )} \, dx \\ & = -\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+b \int \frac {\coth ^{-1}(a+b x)}{x^2 \left (1-a^2-2 a b x-b^2 x^2\right )} \, dx \\ & = -\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\text {Subst}\left (\int \frac {\coth ^{-1}(x)}{\left (-\frac {a}{b}+\frac {x}{b}\right )^2 \left (1-x^2\right )} \, dx,x,a+b x\right ) \\ & = -\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\text {Subst}\left (\int \left (-\frac {b^2 \coth ^{-1}(x)}{\left (-1+a^2\right ) (a-x)^2}-\frac {2 a b^2 \coth ^{-1}(x)}{\left (-1+a^2\right )^2 (a-x)}-\frac {b^2 \coth ^{-1}(x)}{2 (-1+a)^2 (-1+x)}+\frac {b^2 \coth ^{-1}(x)}{2 (1+a)^2 (1+x)}\right ) \, dx,x,a+b x\right ) \\ & = -\frac {\coth ^{-1}(a+b x)^2}{2 x^2}-\frac {b^2 \text {Subst}\left (\int \frac {\coth ^{-1}(x)}{-1+x} \, dx,x,a+b x\right )}{2 (1-a)^2}+\frac {b^2 \text {Subst}\left (\int \frac {\coth ^{-1}(x)}{1+x} \, dx,x,a+b x\right )}{2 (1+a)^2}-\frac {\left (2 a b^2\right ) \text {Subst}\left (\int \frac {\coth ^{-1}(x)}{a-x} \, dx,x,a+b x\right )}{\left (1-a^2\right )^2}+\frac {b^2 \text {Subst}\left (\int \frac {\coth ^{-1}(x)}{(a-x)^2} \, dx,x,a+b x\right )}{1-a^2} \\ & = -\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1-a-b x}\right )}{2 (1-a)^2}-\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{2 (1+a)^2}-\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}+\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}-\frac {b^2 \text {Subst}\left (\int \frac {\log \left (\frac {2}{1-x}\right )}{1-x^2} \, dx,x,a+b x\right )}{2 (1-a)^2}+\frac {b^2 \text {Subst}\left (\int \frac {\log \left (\frac {2}{1+x}\right )}{1-x^2} \, dx,x,a+b x\right )}{2 (1+a)^2}+\frac {\left (2 a b^2\right ) \text {Subst}\left (\int \frac {\log \left (\frac {2}{1+x}\right )}{1-x^2} \, dx,x,a+b x\right )}{\left (1-a^2\right )^2}-\frac {\left (2 a b^2\right ) \text {Subst}\left (\int \frac {\log \left (\frac {2 (a-x)}{(-1+a) (1+x)}\right )}{1-x^2} \, dx,x,a+b x\right )}{\left (1-a^2\right )^2}-\frac {b^2 \text {Subst}\left (\int \frac {1}{(a-x) \left (1-x^2\right )} \, dx,x,a+b x\right )}{1-a^2} \\ & = -\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1-a-b x}\right )}{2 (1-a)^2}-\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{2 (1+a)^2}-\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}+\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}-\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}+\frac {b^2 \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1-a-b x}\right )}{2 (1-a)^2}+\frac {b^2 \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+a+b x}\right )}{2 (1+a)^2}-\frac {b^2 \text {Subst}\left (\int \frac {1}{a-x} \, dx,x,a+b x\right )}{\left (1-a^2\right )^2}-\frac {b^2 \text {Subst}\left (\int \frac {-a-x}{1-x^2} \, dx,x,a+b x\right )}{\left (1-a^2\right )^2}+\frac {\left (2 a b^2\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+a+b x}\right )}{\left (1-a^2\right )^2} \\ & = -\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\frac {b^2 \log (x)}{\left (1-a^2\right )^2}+\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1-a-b x}\right )}{2 (1-a)^2}-\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{2 (1+a)^2}-\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}+\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1-a-b x}\right )}{4 (1-a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{4 (1+a)^2}+\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}-\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}+\frac {b^2 \text {Subst}\left (\int \frac {1}{-1-x} \, dx,x,a+b x\right )}{2 (1-a) (1+a)^2}+\frac {b^2 \text {Subst}\left (\int \frac {1}{1-x} \, dx,x,a+b x\right )}{2 (1-a)^2 (1+a)} \\ & = -\frac {b \coth ^{-1}(a+b x)}{\left (1-a^2\right ) x}-\frac {\coth ^{-1}(a+b x)^2}{2 x^2}+\frac {b^2 \log (x)}{\left (1-a^2\right )^2}+\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1-a-b x}\right )}{2 (1-a)^2}-\frac {b^2 \log (1-a-b x)}{2 (1-a)^2 (1+a)}-\frac {b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{2 (1+a)^2}-\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}+\frac {2 a b^2 \coth ^{-1}(a+b x) \log \left (\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2}-\frac {b^2 \log (1+a+b x)}{2 (1-a) (1+a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1-a-b x}\right )}{4 (1-a)^2}+\frac {b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{4 (1+a)^2}+\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+a+b x}\right )}{\left (1-a^2\right )^2}-\frac {a b^2 \operatorname {PolyLog}\left (2,1-\frac {2 b x}{(1-a) (1+a+b x)}\right )}{\left (1-a^2\right )^2} \\ \end{align*}
Result contains complex when optimal does not.
Time = 1.60 (sec) , antiderivative size = 291, normalized size of antiderivative = 0.79 \[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\frac {\left (-1-a^4+b^2 x^2+a^2 \left (2+b^2 \left (-1+2 \sqrt {1-\frac {1}{a^2}} e^{\text {arctanh}\left (\frac {1}{a}\right )}\right ) x^2\right )\right ) \coth ^{-1}(a+b x)^2+2 b x \coth ^{-1}(a+b x) \left (-1+a^2+a b x+i a b \pi x-2 a b x \text {arctanh}\left (\frac {1}{a}\right )+2 a b x \log \left (1-e^{-2 \coth ^{-1}(a+b x)+2 \text {arctanh}\left (\frac {1}{a}\right )}\right )\right )+2 b^2 x^2 \left (-i a \pi \log \left (1+e^{2 \coth ^{-1}(a+b x)}\right )+i a \pi \log \left (\frac {1}{\sqrt {1-\frac {1}{(a+b x)^2}}}\right )+\log \left (-\frac {b x}{(a+b x) \sqrt {1-\frac {1}{(a+b x)^2}}}\right )-2 a \text {arctanh}\left (\frac {1}{a}\right ) \left (\log \left (1-e^{-2 \coth ^{-1}(a+b x)+2 \text {arctanh}\left (\frac {1}{a}\right )}\right )-\log \left (i \sinh \left (\coth ^{-1}(a+b x)-\text {arctanh}\left (\frac {1}{a}\right )\right )\right )\right )\right )-2 a b^2 x^2 \operatorname {PolyLog}\left (2,e^{-2 \coth ^{-1}(a+b x)+2 \text {arctanh}\left (\frac {1}{a}\right )}\right )}{2 \left (-1+a^2\right )^2 x^2} \]
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Time = 0.19 (sec) , antiderivative size = 386, normalized size of antiderivative = 1.04
method | result | size |
parts | \(-\frac {\operatorname {arccoth}\left (b x +a \right )^{2}}{2 x^{2}}-b^{2} \left (-\frac {\operatorname {arccoth}\left (b x +a \right )}{\left (-1+a \right ) \left (1+a \right ) b x}-\frac {2 \,\operatorname {arccoth}\left (b x +a \right ) a \ln \left (-b x \right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}-\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a +1\right )}{2 \left (1+a \right )^{2}}+\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a -1\right )}{2 \left (-1+a \right )^{2}}+\frac {\frac {\ln \left (b x +a -1\right )^{2}}{4}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a -1\right ) \ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}}{2 \left (-1+a \right )^{2}}-\frac {\frac {\left (\ln \left (b x +a +1\right )-\ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )\right ) \ln \left (-\frac {b x}{2}-\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a +1\right )^{2}}{4}}{2 \left (1+a \right )^{2}}+\frac {-\frac {\ln \left (-b x \right )}{\left (-1+a \right ) \left (1+a \right )}-\frac {\ln \left (b x +a +1\right )}{2 a +2}+\frac {\ln \left (b x +a -1\right )}{-2+2 a}}{\left (-1+a \right ) \left (1+a \right )}-\frac {2 a \left (\frac {\operatorname {dilog}\left (\frac {-b x -a +1}{1-a}\right )}{2}+\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a +1}{1-a}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {-b x -a -1}{-1-a}\right )}{2}-\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a -1}{-1-a}\right )}{2}\right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}\right )\) | \(386\) |
derivativedivides | \(b^{2} \left (-\frac {\operatorname {arccoth}\left (b x +a \right )^{2}}{2 b^{2} x^{2}}+\frac {\operatorname {arccoth}\left (b x +a \right )}{\left (-1+a \right ) \left (1+a \right ) b x}+\frac {2 \,\operatorname {arccoth}\left (b x +a \right ) a \ln \left (-b x \right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}+\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a +1\right )}{2 \left (1+a \right )^{2}}-\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a -1\right )}{2 \left (-1+a \right )^{2}}-\frac {\frac {\ln \left (b x +a -1\right )^{2}}{4}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a -1\right ) \ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}}{2 \left (-1+a \right )^{2}}+\frac {\frac {\left (\ln \left (b x +a +1\right )-\ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )\right ) \ln \left (-\frac {b x}{2}-\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a +1\right )^{2}}{4}}{2 \left (1+a \right )^{2}}-\frac {-\frac {\ln \left (-b x \right )}{\left (-1+a \right ) \left (1+a \right )}-\frac {\ln \left (b x +a +1\right )}{2 a +2}+\frac {\ln \left (b x +a -1\right )}{-2+2 a}}{\left (-1+a \right ) \left (1+a \right )}+\frac {2 a \left (\frac {\operatorname {dilog}\left (\frac {-b x -a +1}{1-a}\right )}{2}+\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a +1}{1-a}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {-b x -a -1}{-1-a}\right )}{2}-\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a -1}{-1-a}\right )}{2}\right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}\right )\) | \(387\) |
default | \(b^{2} \left (-\frac {\operatorname {arccoth}\left (b x +a \right )^{2}}{2 b^{2} x^{2}}+\frac {\operatorname {arccoth}\left (b x +a \right )}{\left (-1+a \right ) \left (1+a \right ) b x}+\frac {2 \,\operatorname {arccoth}\left (b x +a \right ) a \ln \left (-b x \right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}+\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a +1\right )}{2 \left (1+a \right )^{2}}-\frac {\operatorname {arccoth}\left (b x +a \right ) \ln \left (b x +a -1\right )}{2 \left (-1+a \right )^{2}}-\frac {\frac {\ln \left (b x +a -1\right )^{2}}{4}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a -1\right ) \ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}}{2 \left (-1+a \right )^{2}}+\frac {\frac {\left (\ln \left (b x +a +1\right )-\ln \left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )\right ) \ln \left (-\frac {b x}{2}-\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {b x}{2}+\frac {a}{2}+\frac {1}{2}\right )}{2}-\frac {\ln \left (b x +a +1\right )^{2}}{4}}{2 \left (1+a \right )^{2}}-\frac {-\frac {\ln \left (-b x \right )}{\left (-1+a \right ) \left (1+a \right )}-\frac {\ln \left (b x +a +1\right )}{2 a +2}+\frac {\ln \left (b x +a -1\right )}{-2+2 a}}{\left (-1+a \right ) \left (1+a \right )}+\frac {2 a \left (\frac {\operatorname {dilog}\left (\frac {-b x -a +1}{1-a}\right )}{2}+\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a +1}{1-a}\right )}{2}-\frac {\operatorname {dilog}\left (\frac {-b x -a -1}{-1-a}\right )}{2}-\frac {\ln \left (-b x \right ) \ln \left (\frac {-b x -a -1}{-1-a}\right )}{2}\right )}{\left (-1+a \right )^{2} \left (1+a \right )^{2}}\right )\) | \(387\) |
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\[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\int { \frac {\operatorname {arcoth}\left (b x + a\right )^{2}}{x^{3}} \,d x } \]
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\[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\int \frac {\operatorname {acoth}^{2}{\left (a + b x \right )}}{x^{3}}\, dx \]
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none
Time = 0.22 (sec) , antiderivative size = 360, normalized size of antiderivative = 0.97 \[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\frac {1}{8} \, {\left (\frac {8 \, {\left (\log \left (b x + a - 1\right ) \log \left (\frac {1}{2} \, b x + \frac {1}{2} \, a + \frac {1}{2}\right ) + {\rm Li}_2\left (-\frac {1}{2} \, b x - \frac {1}{2} \, a + \frac {1}{2}\right )\right )} a}{a^{4} - 2 \, a^{2} + 1} - \frac {8 \, {\left (\log \left (\frac {b x}{a + 1} + 1\right ) \log \left (x\right ) + {\rm Li}_2\left (-\frac {b x}{a + 1}\right )\right )} a}{a^{4} - 2 \, a^{2} + 1} + \frac {8 \, {\left (\log \left (\frac {b x}{a - 1} + 1\right ) \log \left (x\right ) + {\rm Li}_2\left (-\frac {b x}{a - 1}\right )\right )} a}{a^{4} - 2 \, a^{2} + 1} - \frac {{\left (a^{2} - 2 \, a + 1\right )} \log \left (b x + a + 1\right )^{2} - 2 \, {\left (a^{2} - 2 \, a + 1\right )} \log \left (b x + a + 1\right ) \log \left (b x + a - 1\right ) + {\left (a^{2} + 2 \, a + 1\right )} \log \left (b x + a - 1\right )^{2}}{a^{4} - 2 \, a^{2} + 1} + \frac {4 \, \log \left (b x + a + 1\right )}{a^{3} + a^{2} - a - 1} - \frac {4 \, \log \left (b x + a - 1\right )}{a^{3} - a^{2} - a + 1} + \frac {8 \, \log \left (x\right )}{a^{4} - 2 \, a^{2} + 1}\right )} b^{2} + \frac {1}{2} \, {\left (\frac {4 \, a b \log \left (x\right )}{a^{4} - 2 \, a^{2} + 1} + \frac {b \log \left (b x + a + 1\right )}{a^{2} + 2 \, a + 1} - \frac {b \log \left (b x + a - 1\right )}{a^{2} - 2 \, a + 1} + \frac {2}{{\left (a^{2} - 1\right )} x}\right )} b \operatorname {arcoth}\left (b x + a\right ) - \frac {\operatorname {arcoth}\left (b x + a\right )^{2}}{2 \, x^{2}} \]
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\[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\int { \frac {\operatorname {arcoth}\left (b x + a\right )^{2}}{x^{3}} \,d x } \]
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Timed out. \[ \int \frac {\coth ^{-1}(a+b x)^2}{x^3} \, dx=\int \frac {{\mathrm {acoth}\left (a+b\,x\right )}^2}{x^3} \,d x \]
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