Integrand size = 16, antiderivative size = 673 \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\operatorname {PolyLog}\left (2,-\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,-\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\operatorname {PolyLog}\left (2,\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}} \]
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Time = 0.76 (sec) , antiderivative size = 673, normalized size of antiderivative = 1.00, number of steps used = 15, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.312, Rules used = {6251, 2576, 2404, 2354, 2438} \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\frac {\operatorname {PolyLog}\left (2,-\frac {\left (d a^2+b^2 c\right ) (-a-b x+1)}{\left (c b^2-\sqrt {-c} \sqrt {d} b-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,-\frac {\left (d a^2+b^2 c\right ) (-a-b x+1)}{\left (c b^2+\sqrt {-c} \sqrt {d} b-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\operatorname {PolyLog}\left (2,\frac {\left (d a^2+b^2 c\right ) (a+b x+1)}{\left (c b^2-\sqrt {-c} \sqrt {d} b+a (a+1) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,\frac {\left (d a^2+b^2 c\right ) (a+b x+1)}{\left (c b^2+\sqrt {-c} \sqrt {d} b+a (a+1) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\log \left (-\frac {-a-b x+1}{a+b x}\right ) \log \left (\frac {(-a-b x+1) \left (a^2 d+b^2 c\right )}{(a+b x) \left (-(1-a) a d+b^2 c-b \sqrt {-c} \sqrt {d}\right )}+1\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (-\frac {-a-b x+1}{a+b x}\right ) \log \left (\frac {(-a-b x+1) \left (a^2 d+b^2 c\right )}{(a+b x) \left (-(1-a) a d+b^2 c+b \sqrt {-c} \sqrt {d}\right )}+1\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\log \left (\frac {a+b x+1}{a+b x}\right ) \log \left (1-\frac {(a+b x+1) \left (a^2 d+b^2 c\right )}{(a+b x) \left (a (a+1) d+b^2 c-b \sqrt {-c} \sqrt {d}\right )}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (\frac {a+b x+1}{a+b x}\right ) \log \left (1-\frac {(a+b x+1) \left (a^2 d+b^2 c\right )}{(a+b x) \left (a (a+1) d+b^2 c+b \sqrt {-c} \sqrt {d}\right )}\right )}{4 \sqrt {-c} \sqrt {d}} \]
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Rule 2354
Rule 2404
Rule 2438
Rule 2576
Rule 6251
Rubi steps \begin{align*} \text {integral}& = -\left (\frac {1}{2} \int \frac {\log \left (\frac {-1+a+b x}{a+b x}\right )}{c+d x^2} \, dx\right )+\frac {1}{2} \int \frac {\log \left (\frac {1+a+b x}{a+b x}\right )}{c+d x^2} \, dx \\ & = -\left (\frac {1}{2} b \text {Subst}\left (\int \frac {\log (x)}{b^2 c+(-1+a)^2 d-\left (2 b^2 c+2 (-1+a) a d\right ) x+\left (b^2 c+a^2 d\right ) x^2} \, dx,x,\frac {-1+a+b x}{a+b x}\right )\right )-\frac {1}{2} b \text {Subst}\left (\int \frac {\log (x)}{b^2 c+(1+a)^2 d-\left (2 b^2 c+2 a (1+a) d\right ) x+\left (b^2 c+a^2 d\right ) x^2} \, dx,x,\frac {1+a+b x}{a+b x}\right ) \\ & = -\left (\frac {1}{2} b \text {Subst}\left (\int \left (\frac {\left (b^2 c+a^2 d\right ) \log (x)}{b \sqrt {-c} \sqrt {d} \left (2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d+2 a^2 d-2 \left (b^2 c+a^2 d\right ) x\right )}+\frac {\left (b^2 c+a^2 d\right ) \log (x)}{b \sqrt {-c} \sqrt {d} \left (-2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d-2 a^2 d+2 \left (b^2 c+a^2 d\right ) x\right )}\right ) \, dx,x,\frac {1+a+b x}{a+b x}\right )\right )-\frac {1}{2} b \text {Subst}\left (\int \left (\frac {\left (b^2 c+a^2 d\right ) \log (x)}{b \sqrt {-c} \sqrt {d} \left (2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d+2 a^2 d-2 \left (b^2 c+a^2 d\right ) x\right )}+\frac {\left (b^2 c+a^2 d\right ) \log (x)}{b \sqrt {-c} \sqrt {d} \left (-2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d-2 a^2 d+2 \left (b^2 c+a^2 d\right ) x\right )}\right ) \, dx,x,\frac {-1+a+b x}{a+b x}\right ) \\ & = -\frac {\left (b^2 c+a^2 d\right ) \text {Subst}\left (\int \frac {\log (x)}{2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d+2 a^2 d-2 \left (b^2 c+a^2 d\right ) x} \, dx,x,\frac {-1+a+b x}{a+b x}\right )}{2 \sqrt {-c} \sqrt {d}}-\frac {\left (b^2 c+a^2 d\right ) \text {Subst}\left (\int \frac {\log (x)}{2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d+2 a^2 d-2 \left (b^2 c+a^2 d\right ) x} \, dx,x,\frac {1+a+b x}{a+b x}\right )}{2 \sqrt {-c} \sqrt {d}}-\frac {\left (b^2 c+a^2 d\right ) \text {Subst}\left (\int \frac {\log (x)}{-2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d-2 a^2 d+2 \left (b^2 c+a^2 d\right ) x} \, dx,x,\frac {1+a+b x}{a+b x}\right )}{2 \sqrt {-c} \sqrt {d}}-\frac {\left (b^2 c+a^2 d\right ) \text {Subst}\left (\int \frac {\log (x)}{-2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d-2 a^2 d+2 \left (b^2 c+a^2 d\right ) x} \, dx,x,\frac {-1+a+b x}{a+b x}\right )}{2 \sqrt {-c} \sqrt {d}} \\ & = \frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\text {Subst}\left (\int \frac {\log \left (1+\frac {2 \left (b^2 c+a^2 d\right ) x}{-2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d-2 a^2 d}\right )}{x} \, dx,x,\frac {1+a+b x}{a+b x}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\text {Subst}\left (\int \frac {\log \left (1+\frac {2 \left (b^2 c+a^2 d\right ) x}{-2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d-2 a^2 d}\right )}{x} \, dx,x,\frac {-1+a+b x}{a+b x}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\text {Subst}\left (\int \frac {\log \left (1-\frac {2 \left (b^2 c+a^2 d\right ) x}{2 b^2 c-2 b \sqrt {-c} \sqrt {d}-2 a d+2 a^2 d}\right )}{x} \, dx,x,\frac {-1+a+b x}{a+b x}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\text {Subst}\left (\int \frac {\log \left (1-\frac {2 \left (b^2 c+a^2 d\right ) x}{2 b^2 c-2 b \sqrt {-c} \sqrt {d}+2 a d+2 a^2 d}\right )}{x} \, dx,x,\frac {1+a+b x}{a+b x}\right )}{4 \sqrt {-c} \sqrt {d}} \\ & = \frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (-\frac {1-a-b x}{a+b x}\right ) \log \left (1+\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (1-\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\operatorname {PolyLog}\left (2,-\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,-\frac {\left (b^2 c+a^2 d\right ) (1-a-b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}-(1-a) a d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}+\frac {\operatorname {PolyLog}\left (2,\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c-b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}}-\frac {\operatorname {PolyLog}\left (2,\frac {\left (b^2 c+a^2 d\right ) (1+a+b x)}{\left (b^2 c+b \sqrt {-c} \sqrt {d}+a (1+a) d\right ) (a+b x)}\right )}{4 \sqrt {-c} \sqrt {d}} \\ \end{align*}
Time = 0.41 (sec) , antiderivative size = 529, normalized size of antiderivative = 0.79 \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\frac {\log \left (\frac {\sqrt {d} (-1+a+b x)}{b \sqrt {-c}+(-1+a) \sqrt {d}}\right ) \log \left (\sqrt {-c}-\sqrt {d} x\right )-\log \left (\frac {-1+a+b x}{a+b x}\right ) \log \left (\sqrt {-c}-\sqrt {d} x\right )-\log \left (\frac {\sqrt {d} (1+a+b x)}{b \sqrt {-c}+(1+a) \sqrt {d}}\right ) \log \left (\sqrt {-c}-\sqrt {d} x\right )+\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (\sqrt {-c}-\sqrt {d} x\right )-\log \left (-\frac {\sqrt {d} (-1+a+b x)}{b \sqrt {-c}-(-1+a) \sqrt {d}}\right ) \log \left (\sqrt {-c}+\sqrt {d} x\right )+\log \left (\frac {-1+a+b x}{a+b x}\right ) \log \left (\sqrt {-c}+\sqrt {d} x\right )+\log \left (-\frac {\sqrt {d} (1+a+b x)}{b \sqrt {-c}-(1+a) \sqrt {d}}\right ) \log \left (\sqrt {-c}+\sqrt {d} x\right )-\log \left (\frac {1+a+b x}{a+b x}\right ) \log \left (\sqrt {-c}+\sqrt {d} x\right )+\operatorname {PolyLog}\left (2,\frac {b \left (\sqrt {-c}-\sqrt {d} x\right )}{b \sqrt {-c}+(-1+a) \sqrt {d}}\right )-\operatorname {PolyLog}\left (2,\frac {b \left (\sqrt {-c}-\sqrt {d} x\right )}{b \sqrt {-c}+(1+a) \sqrt {d}}\right )-\operatorname {PolyLog}\left (2,\frac {b \left (\sqrt {-c}+\sqrt {d} x\right )}{b \sqrt {-c}-(-1+a) \sqrt {d}}\right )+\operatorname {PolyLog}\left (2,\frac {b \left (\sqrt {-c}+\sqrt {d} x\right )}{b \sqrt {-c}-(1+a) \sqrt {d}}\right )}{4 \sqrt {-c} \sqrt {d}} \]
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Time = 0.89 (sec) , antiderivative size = 426, normalized size of antiderivative = 0.63
method | result | size |
risch | \(-\frac {\ln \left (b x +a -1\right ) \ln \left (\frac {b \sqrt {-c d}-\left (b x +a -1\right ) d +a d -d}{b \sqrt {-c d}+a d -d}\right )}{4 \sqrt {-c d}}+\frac {\ln \left (b x +a -1\right ) \ln \left (\frac {b \sqrt {-c d}+\left (b x +a -1\right ) d -a d +d}{b \sqrt {-c d}-a d +d}\right )}{4 \sqrt {-c d}}-\frac {\operatorname {dilog}\left (\frac {b \sqrt {-c d}-\left (b x +a -1\right ) d +a d -d}{b \sqrt {-c d}+a d -d}\right )}{4 \sqrt {-c d}}+\frac {\operatorname {dilog}\left (\frac {b \sqrt {-c d}+\left (b x +a -1\right ) d -a d +d}{b \sqrt {-c d}-a d +d}\right )}{4 \sqrt {-c d}}+\frac {\ln \left (b x +a +1\right ) \ln \left (\frac {b \sqrt {-c d}-\left (b x +a +1\right ) d +a d +d}{b \sqrt {-c d}+a d +d}\right )}{4 \sqrt {-c d}}-\frac {\ln \left (b x +a +1\right ) \ln \left (\frac {b \sqrt {-c d}+\left (b x +a +1\right ) d -a d -d}{b \sqrt {-c d}-a d -d}\right )}{4 \sqrt {-c d}}+\frac {\operatorname {dilog}\left (\frac {b \sqrt {-c d}-\left (b x +a +1\right ) d +a d +d}{b \sqrt {-c d}+a d +d}\right )}{4 \sqrt {-c d}}-\frac {\operatorname {dilog}\left (\frac {b \sqrt {-c d}+\left (b x +a +1\right ) d -a d -d}{b \sqrt {-c d}-a d -d}\right )}{4 \sqrt {-c d}}\) | \(426\) |
derivativedivides | \(\text {Expression too large to display}\) | \(1219\) |
default | \(\text {Expression too large to display}\) | \(1219\) |
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\[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\int { \frac {\operatorname {arcoth}\left (b x + a\right )}{d x^{2} + c} \,d x } \]
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Timed out. \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\text {Timed out} \]
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Result contains complex when optimal does not.
Time = 0.42 (sec) , antiderivative size = 591, normalized size of antiderivative = 0.88 \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\frac {\operatorname {arcoth}\left (b x + a\right ) \arctan \left (\frac {d x}{\sqrt {c d}}\right )}{\sqrt {c d}} + \frac {{\left (\arctan \left (\frac {{\left (b^{2} x + {\left (a + 1\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c + {\left (a^{2} + 2 \, a + 1\right )} d}, \frac {{\left (a + 1\right )} b d x + {\left (a^{2} + 2 \, a + 1\right )} d}{b^{2} c + {\left (a^{2} + 2 \, a + 1\right )} d}\right ) - \arctan \left (\frac {{\left (b^{2} x + {\left (a - 1\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c + {\left (a^{2} - 2 \, a + 1\right )} d}, \frac {{\left (a - 1\right )} b d x + {\left (a^{2} - 2 \, a + 1\right )} d}{b^{2} c + {\left (a^{2} - 2 \, a + 1\right )} d}\right )\right )} \log \left (d x^{2} + c\right ) - \arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ) \log \left (\frac {b^{2} d x^{2} + 2 \, {\left (a + 1\right )} b d x + {\left (a^{2} + 2 \, a + 1\right )} d}{b^{2} c + {\left (a^{2} + 2 \, a + 1\right )} d}\right ) + \arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ) \log \left (\frac {b^{2} d x^{2} + 2 \, {\left (a - 1\right )} b d x + {\left (a^{2} - 2 \, a + 1\right )} d}{b^{2} c + {\left (a^{2} - 2 \, a + 1\right )} d}\right ) - i \, {\rm Li}_2\left (\frac {{\left (a - 1\right )} b d x + b^{2} c + {\left (i \, b^{2} x + {\left (-i \, a + i\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c + 2 \, {\left (-i \, a + i\right )} b \sqrt {c} \sqrt {d} - {\left (a^{2} - 2 \, a + 1\right )} d}\right ) + i \, {\rm Li}_2\left (\frac {{\left (a - 1\right )} b d x + b^{2} c - {\left (i \, b^{2} x + {\left (-i \, a + i\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c - 2 \, {\left (-i \, a + i\right )} b \sqrt {c} \sqrt {d} - {\left (a^{2} - 2 \, a + 1\right )} d}\right ) + i \, {\rm Li}_2\left (\frac {{\left (a + 1\right )} b d x + b^{2} c + {\left (i \, b^{2} x + {\left (-i \, a - i\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c + 2 \, {\left (-i \, a - i\right )} b \sqrt {c} \sqrt {d} - {\left (a^{2} + 2 \, a + 1\right )} d}\right ) - i \, {\rm Li}_2\left (\frac {{\left (a + 1\right )} b d x + b^{2} c - {\left (i \, b^{2} x + {\left (-i \, a - i\right )} b\right )} \sqrt {c} \sqrt {d}}{b^{2} c - 2 \, {\left (-i \, a - i\right )} b \sqrt {c} \sqrt {d} - {\left (a^{2} + 2 \, a + 1\right )} d}\right )}{4 \, \sqrt {c d}} \]
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\[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\int { \frac {\operatorname {arcoth}\left (b x + a\right )}{d x^{2} + c} \,d x } \]
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Timed out. \[ \int \frac {\coth ^{-1}(a+b x)}{c+d x^2} \, dx=\int \frac {\mathrm {acoth}\left (a+b\,x\right )}{d\,x^2+c} \,d x \]
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