Integrand size = 23, antiderivative size = 293 \[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=-\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2-\frac {2 i b^2 d^2 \arctan (c x)}{3 c^2}-\frac {3 b^2 d^2 x \arctan (c x)}{2 c}-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {17 d^2 (a+b \arctan (c x))^2}{12 c^2}+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {4 i b d^2 (a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (1+c^2 x^2\right )}{6 c^2}+\frac {2 b^2 d^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+i c x}\right )}{3 c^2} \]
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Time = 0.46 (sec) , antiderivative size = 293, normalized size of antiderivative = 1.00, number of steps used = 28, number of rules used = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.609, Rules used = {4996, 4946, 5036, 4930, 266, 5004, 327, 209, 5040, 4964, 2449, 2352, 272, 45} \[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2+\frac {17 d^2 (a+b \arctan (c x))^2}{12 c^2}-\frac {4 i b d^2 \log \left (\frac {2}{1+i c x}\right ) (a+b \arctan (c x))}{3 c^2}+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))-\frac {3 a b d^2 x}{2 c}-\frac {2 i b^2 d^2 \arctan (c x)}{3 c^2}-\frac {3 b^2 d^2 x \arctan (c x)}{2 c}+\frac {2 b^2 d^2 \operatorname {PolyLog}\left (2,1-\frac {2}{i c x+1}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (c^2 x^2+1\right )}{6 c^2}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2 \]
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Rule 45
Rule 209
Rule 266
Rule 272
Rule 327
Rule 2352
Rule 2449
Rule 4930
Rule 4946
Rule 4964
Rule 4996
Rule 5004
Rule 5036
Rule 5040
Rubi steps \begin{align*} \text {integral}& = \int \left (d^2 x (a+b \arctan (c x))^2+2 i c d^2 x^2 (a+b \arctan (c x))^2-c^2 d^2 x^3 (a+b \arctan (c x))^2\right ) \, dx \\ & = d^2 \int x (a+b \arctan (c x))^2 \, dx+\left (2 i c d^2\right ) \int x^2 (a+b \arctan (c x))^2 \, dx-\left (c^2 d^2\right ) \int x^3 (a+b \arctan (c x))^2 \, dx \\ & = \frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\left (b c d^2\right ) \int \frac {x^2 (a+b \arctan (c x))}{1+c^2 x^2} \, dx-\frac {1}{3} \left (4 i b c^2 d^2\right ) \int \frac {x^3 (a+b \arctan (c x))}{1+c^2 x^2} \, dx+\frac {1}{2} \left (b c^3 d^2\right ) \int \frac {x^4 (a+b \arctan (c x))}{1+c^2 x^2} \, dx \\ & = \frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {1}{3} \left (4 i b d^2\right ) \int x (a+b \arctan (c x)) \, dx+\frac {1}{3} \left (4 i b d^2\right ) \int \frac {x (a+b \arctan (c x))}{1+c^2 x^2} \, dx-\frac {\left (b d^2\right ) \int (a+b \arctan (c x)) \, dx}{c}+\frac {\left (b d^2\right ) \int \frac {a+b \arctan (c x)}{1+c^2 x^2} \, dx}{c}+\frac {1}{2} \left (b c d^2\right ) \int x^2 (a+b \arctan (c x)) \, dx-\frac {1}{2} \left (b c d^2\right ) \int \frac {x^2 (a+b \arctan (c x))}{1+c^2 x^2} \, dx \\ & = -\frac {a b d^2 x}{c}-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {7 d^2 (a+b \arctan (c x))^2}{6 c^2}+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {\left (4 i b d^2\right ) \int \frac {a+b \arctan (c x)}{i-c x} \, dx}{3 c}-\frac {\left (b d^2\right ) \int (a+b \arctan (c x)) \, dx}{2 c}+\frac {\left (b d^2\right ) \int \frac {a+b \arctan (c x)}{1+c^2 x^2} \, dx}{2 c}-\frac {\left (b^2 d^2\right ) \int \arctan (c x) \, dx}{c}+\frac {1}{3} \left (2 i b^2 c d^2\right ) \int \frac {x^2}{1+c^2 x^2} \, dx-\frac {1}{6} \left (b^2 c^2 d^2\right ) \int \frac {x^3}{1+c^2 x^2} \, dx \\ & = -\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {b^2 d^2 x \arctan (c x)}{c}-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {17 d^2 (a+b \arctan (c x))^2}{12 c^2}+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {4 i b d^2 (a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\left (b^2 d^2\right ) \int \frac {x}{1+c^2 x^2} \, dx-\frac {\left (2 i b^2 d^2\right ) \int \frac {1}{1+c^2 x^2} \, dx}{3 c}+\frac {\left (4 i b^2 d^2\right ) \int \frac {\log \left (\frac {2}{1+i c x}\right )}{1+c^2 x^2} \, dx}{3 c}-\frac {\left (b^2 d^2\right ) \int \arctan (c x) \, dx}{2 c}-\frac {1}{12} \left (b^2 c^2 d^2\right ) \text {Subst}\left (\int \frac {x}{1+c^2 x} \, dx,x,x^2\right ) \\ & = -\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {2 i b^2 d^2 \arctan (c x)}{3 c^2}-\frac {3 b^2 d^2 x \arctan (c x)}{2 c}-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {17 d^2 (a+b \arctan (c x))^2}{12 c^2}+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {4 i b d^2 (a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {b^2 d^2 \log \left (1+c^2 x^2\right )}{2 c^2}+\frac {1}{2} \left (b^2 d^2\right ) \int \frac {x}{1+c^2 x^2} \, dx+\frac {\left (4 b^2 d^2\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+i c x}\right )}{3 c^2}-\frac {1}{12} \left (b^2 c^2 d^2\right ) \text {Subst}\left (\int \left (\frac {1}{c^2}-\frac {1}{c^2 \left (1+c^2 x\right )}\right ) \, dx,x,x^2\right ) \\ & = -\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2-\frac {2 i b^2 d^2 \arctan (c x)}{3 c^2}-\frac {3 b^2 d^2 x \arctan (c x)}{2 c}-\frac {2}{3} i b d^2 x^2 (a+b \arctan (c x))+\frac {1}{6} b c d^2 x^3 (a+b \arctan (c x))+\frac {17 d^2 (a+b \arctan (c x))^2}{12 c^2}+\frac {1}{2} d^2 x^2 (a+b \arctan (c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \arctan (c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \arctan (c x))^2-\frac {4 i b d^2 (a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (1+c^2 x^2\right )}{6 c^2}+\frac {2 b^2 d^2 \operatorname {PolyLog}\left (2,1-\frac {2}{1+i c x}\right )}{3 c^2} \\ \end{align*}
Time = 1.00 (sec) , antiderivative size = 257, normalized size of antiderivative = 0.88 \[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=-\frac {d^2 \left (b^2+18 a b c x-8 i b^2 c x-6 a^2 c^2 x^2+8 i a b c^2 x^2+b^2 c^2 x^2-8 i a^2 c^3 x^3-2 a b c^3 x^3+3 a^2 c^4 x^4+b^2 (-i+c x)^3 (i+3 c x) \arctan (c x)^2+2 b \arctan (c x) \left (b \left (4 i+9 c x+4 i c^2 x^2-c^3 x^3\right )+a \left (-9-6 c^2 x^2-8 i c^3 x^3+3 c^4 x^4\right )+8 i b \log \left (1+e^{2 i \arctan (c x)}\right )\right )-8 i a b \log \left (1+c^2 x^2\right )-10 b^2 \log \left (1+c^2 x^2\right )+8 b^2 \operatorname {PolyLog}\left (2,-e^{2 i \arctan (c x)}\right )\right )}{12 c^2} \]
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Time = 1.84 (sec) , antiderivative size = 384, normalized size of antiderivative = 1.31
method | result | size |
parts | \(a^{2} d^{2} \left (-\frac {1}{4} c^{2} x^{4}+\frac {2}{3} i c \,x^{3}+\frac {1}{2} x^{2}\right )+\frac {b^{2} d^{2} \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )^{2}}{4}+\frac {2 i \arctan \left (c x \right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )^{2}}{2}-\frac {2 i \arctan \left (c x \right ) c^{2} x^{2}}{3}+\frac {c^{3} x^{3} \arctan \left (c x \right )}{6}+\frac {2 i \arctan \left (c x \right )^{2} c^{3} x^{3}}{3}+\frac {3 \arctan \left (c x \right )^{2}}{4}-\frac {3 c x \arctan \left (c x \right )}{2}-\frac {\ln \left (c x -i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x +i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x -i\right ) \ln \left (-\frac {i \left (c x +i\right )}{2}\right )}{3}+\frac {\ln \left (c x -i\right )^{2}}{6}-\frac {\ln \left (c x +i\right )^{2}}{6}-\frac {\ln \left (c x +i\right ) \ln \left (\frac {i \left (c x -i\right )}{2}\right )}{3}+\frac {\operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{3}-\frac {\operatorname {dilog}\left (\frac {i \left (c x -i\right )}{2}\right )}{3}-\frac {2 i \arctan \left (c x \right )}{3}-\frac {c^{2} x^{2}}{12}+\frac {5 \ln \left (c^{2} x^{2}+1\right )}{6}+\frac {2 i c x}{3}\right )}{c^{2}}+\frac {2 a \,d^{2} b \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )}{4}+\frac {2 i \arctan \left (c x \right ) c^{3} x^{3}}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )}{2}-\frac {3 c x}{4}+\frac {c^{3} x^{3}}{12}-\frac {i c^{2} x^{2}}{3}+\frac {i \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {3 \arctan \left (c x \right )}{4}\right )}{c^{2}}\) | \(384\) |
derivativedivides | \(\frac {a^{2} d^{2} \left (-\frac {1}{4} c^{4} x^{4}+\frac {2}{3} i c^{3} x^{3}+\frac {1}{2} c^{2} x^{2}\right )+b^{2} d^{2} \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )^{2}}{4}+\frac {2 i \arctan \left (c x \right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )^{2}}{2}-\frac {2 i \arctan \left (c x \right ) c^{2} x^{2}}{3}+\frac {c^{3} x^{3} \arctan \left (c x \right )}{6}+\frac {2 i \arctan \left (c x \right )^{2} c^{3} x^{3}}{3}+\frac {3 \arctan \left (c x \right )^{2}}{4}-\frac {3 c x \arctan \left (c x \right )}{2}-\frac {\ln \left (c x -i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x +i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x -i\right ) \ln \left (-\frac {i \left (c x +i\right )}{2}\right )}{3}+\frac {\ln \left (c x -i\right )^{2}}{6}-\frac {\ln \left (c x +i\right )^{2}}{6}-\frac {\ln \left (c x +i\right ) \ln \left (\frac {i \left (c x -i\right )}{2}\right )}{3}+\frac {\operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{3}-\frac {\operatorname {dilog}\left (\frac {i \left (c x -i\right )}{2}\right )}{3}-\frac {2 i \arctan \left (c x \right )}{3}-\frac {c^{2} x^{2}}{12}+\frac {5 \ln \left (c^{2} x^{2}+1\right )}{6}+\frac {2 i c x}{3}\right )+2 a \,d^{2} b \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )}{4}+\frac {2 i \arctan \left (c x \right ) c^{3} x^{3}}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )}{2}-\frac {3 c x}{4}+\frac {c^{3} x^{3}}{12}-\frac {i c^{2} x^{2}}{3}+\frac {i \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {3 \arctan \left (c x \right )}{4}\right )}{c^{2}}\) | \(387\) |
default | \(\frac {a^{2} d^{2} \left (-\frac {1}{4} c^{4} x^{4}+\frac {2}{3} i c^{3} x^{3}+\frac {1}{2} c^{2} x^{2}\right )+b^{2} d^{2} \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )^{2}}{4}+\frac {2 i \arctan \left (c x \right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )^{2}}{2}-\frac {2 i \arctan \left (c x \right ) c^{2} x^{2}}{3}+\frac {c^{3} x^{3} \arctan \left (c x \right )}{6}+\frac {2 i \arctan \left (c x \right )^{2} c^{3} x^{3}}{3}+\frac {3 \arctan \left (c x \right )^{2}}{4}-\frac {3 c x \arctan \left (c x \right )}{2}-\frac {\ln \left (c x -i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x +i\right ) \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {\ln \left (c x -i\right ) \ln \left (-\frac {i \left (c x +i\right )}{2}\right )}{3}+\frac {\ln \left (c x -i\right )^{2}}{6}-\frac {\ln \left (c x +i\right )^{2}}{6}-\frac {\ln \left (c x +i\right ) \ln \left (\frac {i \left (c x -i\right )}{2}\right )}{3}+\frac {\operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{3}-\frac {\operatorname {dilog}\left (\frac {i \left (c x -i\right )}{2}\right )}{3}-\frac {2 i \arctan \left (c x \right )}{3}-\frac {c^{2} x^{2}}{12}+\frac {5 \ln \left (c^{2} x^{2}+1\right )}{6}+\frac {2 i c x}{3}\right )+2 a \,d^{2} b \left (-\frac {c^{4} x^{4} \arctan \left (c x \right )}{4}+\frac {2 i \arctan \left (c x \right ) c^{3} x^{3}}{3}+\frac {c^{2} x^{2} \arctan \left (c x \right )}{2}-\frac {3 c x}{4}+\frac {c^{3} x^{3}}{12}-\frac {i c^{2} x^{2}}{3}+\frac {i \ln \left (c^{2} x^{2}+1\right )}{3}+\frac {3 \arctan \left (c x \right )}{4}\right )}{c^{2}}\) | \(387\) |
risch | \(-\frac {b^{2} d^{2} x^{2}}{12}+\frac {503 b^{2} d^{2} \ln \left (c^{2} x^{2}+1\right )}{576 c^{2}}-\frac {3 a b \,d^{2} x}{2 c}-\frac {3 b^{2} d^{2}}{4 c^{2}}-\frac {2 i d^{2} x^{2} a b}{3}+\frac {d^{2} b^{2} \ln \left (-i c x +1\right ) x^{2}}{3}+\frac {a b c \,d^{2} x^{3}}{6}+\frac {a^{2} d^{2} x^{2}}{2}-\frac {a^{2} c^{2} d^{2} x^{4}}{4}+\frac {i d^{2} c \,b^{2} \ln \left (-i c x +1\right ) x^{3}}{12}-\frac {3 i d^{2} b^{2} \ln \left (-i c x +1\right ) x}{4 c}+\frac {2 i b \,d^{2} a \ln \left (c^{2} x^{2}+1\right )}{3 c^{2}}-\frac {2 d^{2} c a b \ln \left (-i c x +1\right ) x^{3}}{3}+\frac {i d^{2} a b \ln \left (-i c x +1\right ) x^{2}}{2}-\frac {i d^{2} c \,b^{2} \ln \left (-i c x +1\right )^{2} x^{3}}{6}+\frac {3 b \,d^{2} a \arctan \left (c x \right )}{2 c^{2}}+\frac {17 d^{2} a^{2}}{12 c^{2}}-\frac {23 d^{2} \ln \left (-i c x +1\right ) b^{2}}{288 c^{2}}+\frac {2 b^{2} d^{2} \operatorname {dilog}\left (\frac {1}{2}-\frac {i c x}{2}\right )}{3 c^{2}}-\frac {d^{2} b^{2} \ln \left (-i c x +1\right )^{2} x^{2}}{8}-\frac {17 d^{2} \ln \left (-i c x +1\right )^{2} b^{2}}{48 c^{2}}-\frac {i d^{2} c^{2} b a \ln \left (-i c x +1\right ) x^{4}}{4}+\left (-\frac {b^{2} d^{2} \left (3 c^{2} x^{4}-8 i c \,x^{3}-6 x^{2}\right ) \ln \left (-i c x +1\right )}{24}-\frac {b \,d^{2} \left (-6 i a \,c^{4} x^{4}+2 i b \,c^{3} x^{3}-16 a \,c^{3} x^{3}+12 i a \,c^{2} x^{2}+8 b \,c^{2} x^{2}-18 i b c x -17 b \ln \left (-i c x +1\right )\right )}{24 c^{2}}\right ) \ln \left (i c x +1\right )+\frac {2 i b^{2} d^{2} x}{3 c}-\frac {7 i d^{2} a b}{3 c^{2}}-\frac {215 i b^{2} d^{2} \arctan \left (c x \right )}{288 c^{2}}+\frac {2 b^{2} d^{2} \ln \left (\frac {1}{2}+\frac {i c x}{2}\right ) \ln \left (\frac {1}{2}-\frac {i c x}{2}\right )}{3 c^{2}}-\frac {2 b^{2} d^{2} \ln \left (\frac {1}{2}+\frac {i c x}{2}\right ) \ln \left (-i c x +1\right )}{3 c^{2}}+\frac {b^{2} d^{2} \left (3 c^{4} x^{4}-8 i c^{3} x^{3}-6 c^{2} x^{2}-1\right ) \ln \left (i c x +1\right )^{2}}{48 c^{2}}+\frac {d^{2} c^{2} b^{2} \ln \left (-i c x +1\right )^{2} x^{4}}{16}+\frac {2 i a^{2} c \,d^{2} x^{3}}{3}\) | \(674\) |
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\[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=\int { {\left (i \, c d x + d\right )}^{2} {\left (b \arctan \left (c x\right ) + a\right )}^{2} x \,d x } \]
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Timed out. \[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=\text {Timed out} \]
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\[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=\int { {\left (i \, c d x + d\right )}^{2} {\left (b \arctan \left (c x\right ) + a\right )}^{2} x \,d x } \]
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\[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=\int { {\left (i \, c d x + d\right )}^{2} {\left (b \arctan \left (c x\right ) + a\right )}^{2} x \,d x } \]
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Timed out. \[ \int x (d+i c d x)^2 (a+b \arctan (c x))^2 \, dx=\int x\,{\left (a+b\,\mathrm {atan}\left (c\,x\right )\right )}^2\,{\left (d+c\,d\,x\,1{}\mathrm {i}\right )}^2 \,d x \]
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