Integrand size = 20, antiderivative size = 153 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {2 c^2 \left (1+a^2 x^2\right )}{45 a^2}+\frac {c^2 \left (1+a^2 x^2\right )^2}{60 a^2}-\frac {8 c^2 x \arctan (a x)}{45 a}-\frac {4 c^2 x \left (1+a^2 x^2\right ) \arctan (a x)}{45 a}-\frac {c^2 x \left (1+a^2 x^2\right )^2 \arctan (a x)}{15 a}+\frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}+\frac {4 c^2 \log \left (1+a^2 x^2\right )}{45 a^2} \]
[Out]
Time = 0.07 (sec) , antiderivative size = 153, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {5050, 4998, 4930, 266} \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {c^2 \left (a^2 x^2+1\right )^3 \arctan (a x)^2}{6 a^2}-\frac {c^2 x \left (a^2 x^2+1\right )^2 \arctan (a x)}{15 a}-\frac {4 c^2 x \left (a^2 x^2+1\right ) \arctan (a x)}{45 a}+\frac {c^2 \left (a^2 x^2+1\right )^2}{60 a^2}+\frac {2 c^2 \left (a^2 x^2+1\right )}{45 a^2}+\frac {4 c^2 \log \left (a^2 x^2+1\right )}{45 a^2}-\frac {8 c^2 x \arctan (a x)}{45 a} \]
[In]
[Out]
Rule 266
Rule 4930
Rule 4998
Rule 5050
Rubi steps \begin{align*} \text {integral}& = \frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}-\frac {\int \left (c+a^2 c x^2\right )^2 \arctan (a x) \, dx}{3 a} \\ & = \frac {c^2 \left (1+a^2 x^2\right )^2}{60 a^2}-\frac {c^2 x \left (1+a^2 x^2\right )^2 \arctan (a x)}{15 a}+\frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}-\frac {(4 c) \int \left (c+a^2 c x^2\right ) \arctan (a x) \, dx}{15 a} \\ & = \frac {2 c^2 \left (1+a^2 x^2\right )}{45 a^2}+\frac {c^2 \left (1+a^2 x^2\right )^2}{60 a^2}-\frac {4 c^2 x \left (1+a^2 x^2\right ) \arctan (a x)}{45 a}-\frac {c^2 x \left (1+a^2 x^2\right )^2 \arctan (a x)}{15 a}+\frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}-\frac {\left (8 c^2\right ) \int \arctan (a x) \, dx}{45 a} \\ & = \frac {2 c^2 \left (1+a^2 x^2\right )}{45 a^2}+\frac {c^2 \left (1+a^2 x^2\right )^2}{60 a^2}-\frac {8 c^2 x \arctan (a x)}{45 a}-\frac {4 c^2 x \left (1+a^2 x^2\right ) \arctan (a x)}{45 a}-\frac {c^2 x \left (1+a^2 x^2\right )^2 \arctan (a x)}{15 a}+\frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}+\frac {1}{45} \left (8 c^2\right ) \int \frac {x}{1+a^2 x^2} \, dx \\ & = \frac {2 c^2 \left (1+a^2 x^2\right )}{45 a^2}+\frac {c^2 \left (1+a^2 x^2\right )^2}{60 a^2}-\frac {8 c^2 x \arctan (a x)}{45 a}-\frac {4 c^2 x \left (1+a^2 x^2\right ) \arctan (a x)}{45 a}-\frac {c^2 x \left (1+a^2 x^2\right )^2 \arctan (a x)}{15 a}+\frac {c^2 \left (1+a^2 x^2\right )^3 \arctan (a x)^2}{6 a^2}+\frac {4 c^2 \log \left (1+a^2 x^2\right )}{45 a^2} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 84, normalized size of antiderivative = 0.55 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {c^2 \left (14 a^2 x^2+3 a^4 x^4-4 a x \left (15+10 a^2 x^2+3 a^4 x^4\right ) \arctan (a x)+30 \left (1+a^2 x^2\right )^3 \arctan (a x)^2+16 \log \left (1+a^2 x^2\right )\right )}{180 a^2} \]
[In]
[Out]
Time = 0.78 (sec) , antiderivative size = 132, normalized size of antiderivative = 0.86
method | result | size |
parts | \(\frac {a^{4} c^{2} x^{6} \arctan \left (a x \right )^{2}}{6}+\frac {a^{2} c^{2} x^{4} \arctan \left (a x \right )^{2}}{2}+\frac {c^{2} x^{2} \arctan \left (a x \right )^{2}}{2}+\frac {c^{2} \arctan \left (a x \right )^{2}}{6 a^{2}}-\frac {c^{2} \left (\frac {\arctan \left (a x \right ) a^{5} x^{5}}{5}+\frac {2 \arctan \left (a x \right ) x^{3} a^{3}}{3}+x \arctan \left (a x \right ) a -\frac {a^{4} x^{4}}{20}-\frac {7 a^{2} x^{2}}{30}-\frac {4 \ln \left (a^{2} x^{2}+1\right )}{15}\right )}{3 a^{2}}\) | \(132\) |
derivativedivides | \(\frac {\frac {c^{2} \arctan \left (a x \right )^{2} a^{6} x^{6}}{6}+\frac {a^{4} c^{2} x^{4} \arctan \left (a x \right )^{2}}{2}+\frac {a^{2} c^{2} x^{2} \arctan \left (a x \right )^{2}}{2}+\frac {c^{2} \arctan \left (a x \right )^{2}}{6}-\frac {c^{2} \left (\frac {\arctan \left (a x \right ) a^{5} x^{5}}{5}+\frac {2 \arctan \left (a x \right ) x^{3} a^{3}}{3}+x \arctan \left (a x \right ) a -\frac {a^{4} x^{4}}{20}-\frac {7 a^{2} x^{2}}{30}-\frac {4 \ln \left (a^{2} x^{2}+1\right )}{15}\right )}{3}}{a^{2}}\) | \(133\) |
default | \(\frac {\frac {c^{2} \arctan \left (a x \right )^{2} a^{6} x^{6}}{6}+\frac {a^{4} c^{2} x^{4} \arctan \left (a x \right )^{2}}{2}+\frac {a^{2} c^{2} x^{2} \arctan \left (a x \right )^{2}}{2}+\frac {c^{2} \arctan \left (a x \right )^{2}}{6}-\frac {c^{2} \left (\frac {\arctan \left (a x \right ) a^{5} x^{5}}{5}+\frac {2 \arctan \left (a x \right ) x^{3} a^{3}}{3}+x \arctan \left (a x \right ) a -\frac {a^{4} x^{4}}{20}-\frac {7 a^{2} x^{2}}{30}-\frac {4 \ln \left (a^{2} x^{2}+1\right )}{15}\right )}{3}}{a^{2}}\) | \(133\) |
parallelrisch | \(\frac {30 c^{2} \arctan \left (a x \right )^{2} a^{6} x^{6}-12 c^{2} \arctan \left (a x \right ) a^{5} x^{5}+90 a^{4} c^{2} x^{4} \arctan \left (a x \right )^{2}+3 a^{4} c^{2} x^{4}-40 a^{3} c^{2} x^{3} \arctan \left (a x \right )+90 a^{2} c^{2} x^{2} \arctan \left (a x \right )^{2}+14 a^{2} c^{2} x^{2}-60 a \,c^{2} x \arctan \left (a x \right )+30 c^{2} \arctan \left (a x \right )^{2}+16 c^{2} \ln \left (a^{2} x^{2}+1\right )}{180 a^{2}}\) | \(147\) |
risch | \(-\frac {c^{2} \left (a^{2} x^{2}+1\right )^{3} \ln \left (i a x +1\right )^{2}}{24 a^{2}}+\frac {c^{2} \left (15 a^{6} x^{6} \ln \left (-i a x +1\right )+6 i a^{5} x^{5}+45 x^{4} \ln \left (-i a x +1\right ) a^{4}+20 i a^{3} x^{3}+45 a^{2} x^{2} \ln \left (-i a x +1\right )+30 i a x +15 \ln \left (-i a x +1\right )\right ) \ln \left (i a x +1\right )}{180 a^{2}}-\frac {c^{2} a^{4} x^{6} \ln \left (-i a x +1\right )^{2}}{24}-\frac {i c^{2} a^{3} x^{5} \ln \left (-i a x +1\right )}{30}-\frac {c^{2} a^{2} x^{4} \ln \left (-i a x +1\right )^{2}}{8}-\frac {i c^{2} a \,x^{3} \ln \left (-i a x +1\right )}{9}+\frac {c^{2} a^{2} x^{4}}{60}-\frac {c^{2} x^{2} \ln \left (-i a x +1\right )^{2}}{8}-\frac {i c^{2} x \ln \left (-i a x +1\right )}{6 a}+\frac {7 c^{2} x^{2}}{90}-\frac {c^{2} \ln \left (-i a x +1\right )^{2}}{24 a^{2}}+\frac {4 c^{2} \ln \left (-a^{2} x^{2}-1\right )}{45 a^{2}}+\frac {49 c^{2}}{540 a^{2}}\) | \(309\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 123, normalized size of antiderivative = 0.80 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {3 \, a^{4} c^{2} x^{4} + 14 \, a^{2} c^{2} x^{2} + 30 \, {\left (a^{6} c^{2} x^{6} + 3 \, a^{4} c^{2} x^{4} + 3 \, a^{2} c^{2} x^{2} + c^{2}\right )} \arctan \left (a x\right )^{2} + 16 \, c^{2} \log \left (a^{2} x^{2} + 1\right ) - 4 \, {\left (3 \, a^{5} c^{2} x^{5} + 10 \, a^{3} c^{2} x^{3} + 15 \, a c^{2} x\right )} \arctan \left (a x\right )}{180 \, a^{2}} \]
[In]
[Out]
Time = 0.43 (sec) , antiderivative size = 158, normalized size of antiderivative = 1.03 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\begin {cases} \frac {a^{4} c^{2} x^{6} \operatorname {atan}^{2}{\left (a x \right )}}{6} - \frac {a^{3} c^{2} x^{5} \operatorname {atan}{\left (a x \right )}}{15} + \frac {a^{2} c^{2} x^{4} \operatorname {atan}^{2}{\left (a x \right )}}{2} + \frac {a^{2} c^{2} x^{4}}{60} - \frac {2 a c^{2} x^{3} \operatorname {atan}{\left (a x \right )}}{9} + \frac {c^{2} x^{2} \operatorname {atan}^{2}{\left (a x \right )}}{2} + \frac {7 c^{2} x^{2}}{90} - \frac {c^{2} x \operatorname {atan}{\left (a x \right )}}{3 a} + \frac {4 c^{2} \log {\left (x^{2} + \frac {1}{a^{2}} \right )}}{45 a^{2}} + \frac {c^{2} \operatorname {atan}^{2}{\left (a x \right )}}{6 a^{2}} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \]
[In]
[Out]
none
Time = 0.18 (sec) , antiderivative size = 111, normalized size of antiderivative = 0.73 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {{\left (a^{2} c x^{2} + c\right )}^{3} \arctan \left (a x\right )^{2}}{6 \, a^{2} c} + \frac {{\left (3 \, a^{2} c^{3} x^{4} + 14 \, c^{3} x^{2} + \frac {16 \, c^{3} \log \left (a^{2} x^{2} + 1\right )}{a^{2}}\right )} a - 4 \, {\left (3 \, a^{4} c^{3} x^{5} + 10 \, a^{2} c^{3} x^{3} + 15 \, c^{3} x\right )} \arctan \left (a x\right )}{180 \, a c} \]
[In]
[Out]
\[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\int { {\left (a^{2} c x^{2} + c\right )}^{2} x \arctan \left (a x\right )^{2} \,d x } \]
[In]
[Out]
Time = 0.32 (sec) , antiderivative size = 135, normalized size of antiderivative = 0.88 \[ \int x \left (c+a^2 c x^2\right )^2 \arctan (a x)^2 \, dx=\frac {\frac {c^2\,\left (30\,{\mathrm {atan}\left (a\,x\right )}^2+16\,\ln \left (a^2\,x^2+1\right )\right )}{180}-\frac {a\,c^2\,x\,\mathrm {atan}\left (a\,x\right )}{3}}{a^2}+\frac {c^2\,\left (90\,x^2\,{\mathrm {atan}\left (a\,x\right )}^2+14\,x^2\right )}{180}+\frac {a^2\,c^2\,\left (90\,x^4\,{\mathrm {atan}\left (a\,x\right )}^2+3\,x^4\right )}{180}-\frac {a^3\,c^2\,x^5\,\mathrm {atan}\left (a\,x\right )}{15}+\frac {a^4\,c^2\,x^6\,{\mathrm {atan}\left (a\,x\right )}^2}{6}-\frac {2\,a\,c^2\,x^3\,\mathrm {atan}\left (a\,x\right )}{9} \]
[In]
[Out]