Integrand size = 23, antiderivative size = 194 \[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=-\frac {b^2}{3 d e^4 (c+d x)}-\frac {b^2 \arctan (c+d x)}{3 d e^4}-\frac {b (a+b \arctan (c+d x))}{3 d e^4 (c+d x)^2}+\frac {i (a+b \arctan (c+d x))^2}{3 d e^4}-\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}-\frac {2 b (a+b \arctan (c+d x)) \log \left (2-\frac {2}{1-i (c+d x)}\right )}{3 d e^4}+\frac {i b^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i (c+d x)}\right )}{3 d e^4} \]
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Time = 0.18 (sec) , antiderivative size = 194, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.391, Rules used = {5151, 12, 4946, 5038, 331, 209, 5044, 4988, 2497} \[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=-\frac {b (a+b \arctan (c+d x))}{3 d e^4 (c+d x)^2}-\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}+\frac {i (a+b \arctan (c+d x))^2}{3 d e^4}-\frac {2 b \log \left (2-\frac {2}{1-i (c+d x)}\right ) (a+b \arctan (c+d x))}{3 d e^4}-\frac {b^2 \arctan (c+d x)}{3 d e^4}+\frac {i b^2 \operatorname {PolyLog}\left (2,\frac {2}{1-i (c+d x)}-1\right )}{3 d e^4}-\frac {b^2}{3 d e^4 (c+d x)} \]
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Rule 12
Rule 209
Rule 331
Rule 2497
Rule 4946
Rule 4988
Rule 5038
Rule 5044
Rule 5151
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \frac {(a+b \arctan (x))^2}{e^4 x^4} \, dx,x,c+d x\right )}{d} \\ & = \frac {\text {Subst}\left (\int \frac {(a+b \arctan (x))^2}{x^4} \, dx,x,c+d x\right )}{d e^4} \\ & = -\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}+\frac {(2 b) \text {Subst}\left (\int \frac {a+b \arctan (x)}{x^3 \left (1+x^2\right )} \, dx,x,c+d x\right )}{3 d e^4} \\ & = -\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}+\frac {(2 b) \text {Subst}\left (\int \frac {a+b \arctan (x)}{x^3} \, dx,x,c+d x\right )}{3 d e^4}-\frac {(2 b) \text {Subst}\left (\int \frac {a+b \arctan (x)}{x \left (1+x^2\right )} \, dx,x,c+d x\right )}{3 d e^4} \\ & = -\frac {b (a+b \arctan (c+d x))}{3 d e^4 (c+d x)^2}+\frac {i (a+b \arctan (c+d x))^2}{3 d e^4}-\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}-\frac {(2 i b) \text {Subst}\left (\int \frac {a+b \arctan (x)}{x (i+x)} \, dx,x,c+d x\right )}{3 d e^4}+\frac {b^2 \text {Subst}\left (\int \frac {1}{x^2 \left (1+x^2\right )} \, dx,x,c+d x\right )}{3 d e^4} \\ & = -\frac {b^2}{3 d e^4 (c+d x)}-\frac {b (a+b \arctan (c+d x))}{3 d e^4 (c+d x)^2}+\frac {i (a+b \arctan (c+d x))^2}{3 d e^4}-\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}-\frac {2 b (a+b \arctan (c+d x)) \log \left (2-\frac {2}{1-i (c+d x)}\right )}{3 d e^4}-\frac {b^2 \text {Subst}\left (\int \frac {1}{1+x^2} \, dx,x,c+d x\right )}{3 d e^4}+\frac {\left (2 b^2\right ) \text {Subst}\left (\int \frac {\log \left (2-\frac {2}{1-i x}\right )}{1+x^2} \, dx,x,c+d x\right )}{3 d e^4} \\ & = -\frac {b^2}{3 d e^4 (c+d x)}-\frac {b^2 \arctan (c+d x)}{3 d e^4}-\frac {b (a+b \arctan (c+d x))}{3 d e^4 (c+d x)^2}+\frac {i (a+b \arctan (c+d x))^2}{3 d e^4}-\frac {(a+b \arctan (c+d x))^2}{3 d e^4 (c+d x)^3}-\frac {2 b (a+b \arctan (c+d x)) \log \left (2-\frac {2}{1-i (c+d x)}\right )}{3 d e^4}+\frac {i b^2 \operatorname {PolyLog}\left (2,-1+\frac {2}{1-i (c+d x)}\right )}{3 d e^4} \\ \end{align*}
Time = 0.66 (sec) , antiderivative size = 163, normalized size of antiderivative = 0.84 \[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=-\frac {a b+\frac {a^2}{(c+d x)^3}+\frac {a b}{(c+d x)^2}+\frac {b^2}{c+d x}+b^2 \left (-i+\frac {1}{(c+d x)^3}\right ) \arctan (c+d x)^2+b \arctan (c+d x) \left (b+\frac {2 a}{(c+d x)^3}+\frac {b}{(c+d x)^2}+2 b \log \left (1-e^{2 i \arctan (c+d x)}\right )\right )+2 a b \log \left (\frac {c+d x}{\sqrt {1+(c+d x)^2}}\right )-i b^2 \operatorname {PolyLog}\left (2,e^{2 i \arctan (c+d x)}\right )}{3 d e^4} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 367 vs. \(2 (176 ) = 352\).
Time = 2.56 (sec) , antiderivative size = 368, normalized size of antiderivative = 1.90
method | result | size |
derivativedivides | \(\frac {-\frac {a^{2}}{3 e^{4} \left (d x +c \right )^{3}}+\frac {b^{2} \left (-\frac {\arctan \left (d x +c \right )^{2}}{3 \left (d x +c \right )^{3}}-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{2}}-\frac {2 \ln \left (d x +c \right ) \arctan \left (d x +c \right )}{3}+\frac {\arctan \left (d x +c \right ) \ln \left (1+\left (d x +c \right )^{2}\right )}{3}+\frac {i \left (\ln \left (d x +c -i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c -i\right )^{2}}{2}-\operatorname {dilog}\left (-\frac {i \left (d x +c +i\right )}{2}\right )-\ln \left (d x +c -i\right ) \ln \left (-\frac {i \left (d x +c +i\right )}{2}\right )\right )}{6}-\frac {i \left (\ln \left (d x +c +i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c +i\right )^{2}}{2}-\operatorname {dilog}\left (\frac {i \left (d x +c -i\right )}{2}\right )-\ln \left (d x +c +i\right ) \ln \left (\frac {i \left (d x +c -i\right )}{2}\right )\right )}{6}-\frac {1}{3 \left (d x +c \right )}-\frac {\arctan \left (d x +c \right )}{3}-\frac {i \ln \left (d x +c \right ) \ln \left (1+i \left (d x +c \right )\right )}{3}+\frac {i \ln \left (d x +c \right ) \ln \left (1-i \left (d x +c \right )\right )}{3}-\frac {i \operatorname {dilog}\left (1+i \left (d x +c \right )\right )}{3}+\frac {i \operatorname {dilog}\left (1-i \left (d x +c \right )\right )}{3}\right )}{e^{4}}+\frac {2 a b \left (-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{3}}-\frac {1}{6 \left (d x +c \right )^{2}}-\frac {\ln \left (d x +c \right )}{3}+\frac {\ln \left (1+\left (d x +c \right )^{2}\right )}{6}\right )}{e^{4}}}{d}\) | \(368\) |
default | \(\frac {-\frac {a^{2}}{3 e^{4} \left (d x +c \right )^{3}}+\frac {b^{2} \left (-\frac {\arctan \left (d x +c \right )^{2}}{3 \left (d x +c \right )^{3}}-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{2}}-\frac {2 \ln \left (d x +c \right ) \arctan \left (d x +c \right )}{3}+\frac {\arctan \left (d x +c \right ) \ln \left (1+\left (d x +c \right )^{2}\right )}{3}+\frac {i \left (\ln \left (d x +c -i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c -i\right )^{2}}{2}-\operatorname {dilog}\left (-\frac {i \left (d x +c +i\right )}{2}\right )-\ln \left (d x +c -i\right ) \ln \left (-\frac {i \left (d x +c +i\right )}{2}\right )\right )}{6}-\frac {i \left (\ln \left (d x +c +i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c +i\right )^{2}}{2}-\operatorname {dilog}\left (\frac {i \left (d x +c -i\right )}{2}\right )-\ln \left (d x +c +i\right ) \ln \left (\frac {i \left (d x +c -i\right )}{2}\right )\right )}{6}-\frac {1}{3 \left (d x +c \right )}-\frac {\arctan \left (d x +c \right )}{3}-\frac {i \ln \left (d x +c \right ) \ln \left (1+i \left (d x +c \right )\right )}{3}+\frac {i \ln \left (d x +c \right ) \ln \left (1-i \left (d x +c \right )\right )}{3}-\frac {i \operatorname {dilog}\left (1+i \left (d x +c \right )\right )}{3}+\frac {i \operatorname {dilog}\left (1-i \left (d x +c \right )\right )}{3}\right )}{e^{4}}+\frac {2 a b \left (-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{3}}-\frac {1}{6 \left (d x +c \right )^{2}}-\frac {\ln \left (d x +c \right )}{3}+\frac {\ln \left (1+\left (d x +c \right )^{2}\right )}{6}\right )}{e^{4}}}{d}\) | \(368\) |
parts | \(-\frac {a^{2}}{3 e^{4} \left (d x +c \right )^{3} d}+\frac {b^{2} \left (-\frac {\arctan \left (d x +c \right )^{2}}{3 \left (d x +c \right )^{3}}-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{2}}-\frac {2 \ln \left (d x +c \right ) \arctan \left (d x +c \right )}{3}+\frac {\arctan \left (d x +c \right ) \ln \left (1+\left (d x +c \right )^{2}\right )}{3}+\frac {i \left (\ln \left (d x +c -i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c -i\right )^{2}}{2}-\operatorname {dilog}\left (-\frac {i \left (d x +c +i\right )}{2}\right )-\ln \left (d x +c -i\right ) \ln \left (-\frac {i \left (d x +c +i\right )}{2}\right )\right )}{6}-\frac {i \left (\ln \left (d x +c +i\right ) \ln \left (1+\left (d x +c \right )^{2}\right )-\frac {\ln \left (d x +c +i\right )^{2}}{2}-\operatorname {dilog}\left (\frac {i \left (d x +c -i\right )}{2}\right )-\ln \left (d x +c +i\right ) \ln \left (\frac {i \left (d x +c -i\right )}{2}\right )\right )}{6}-\frac {1}{3 \left (d x +c \right )}-\frac {\arctan \left (d x +c \right )}{3}-\frac {i \ln \left (d x +c \right ) \ln \left (1+i \left (d x +c \right )\right )}{3}+\frac {i \ln \left (d x +c \right ) \ln \left (1-i \left (d x +c \right )\right )}{3}-\frac {i \operatorname {dilog}\left (1+i \left (d x +c \right )\right )}{3}+\frac {i \operatorname {dilog}\left (1-i \left (d x +c \right )\right )}{3}\right )}{e^{4} d}+\frac {2 a b \left (-\frac {\arctan \left (d x +c \right )}{3 \left (d x +c \right )^{3}}-\frac {1}{6 \left (d x +c \right )^{2}}-\frac {\ln \left (d x +c \right )}{3}+\frac {\ln \left (1+\left (d x +c \right )^{2}\right )}{6}\right )}{e^{4} d}\) | \(373\) |
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\[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=\int { \frac {{\left (b \arctan \left (d x + c\right ) + a\right )}^{2}}{{\left (d e x + c e\right )}^{4}} \,d x } \]
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\[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=\frac {\int \frac {a^{2}}{c^{4} + 4 c^{3} d x + 6 c^{2} d^{2} x^{2} + 4 c d^{3} x^{3} + d^{4} x^{4}}\, dx + \int \frac {b^{2} \operatorname {atan}^{2}{\left (c + d x \right )}}{c^{4} + 4 c^{3} d x + 6 c^{2} d^{2} x^{2} + 4 c d^{3} x^{3} + d^{4} x^{4}}\, dx + \int \frac {2 a b \operatorname {atan}{\left (c + d x \right )}}{c^{4} + 4 c^{3} d x + 6 c^{2} d^{2} x^{2} + 4 c d^{3} x^{3} + d^{4} x^{4}}\, dx}{e^{4}} \]
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\[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=\int { \frac {{\left (b \arctan \left (d x + c\right ) + a\right )}^{2}}{{\left (d e x + c e\right )}^{4}} \,d x } \]
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Timed out. \[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=\text {Timed out} \]
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Timed out. \[ \int \frac {(a+b \arctan (c+d x))^2}{(c e+d e x)^4} \, dx=\int \frac {{\left (a+b\,\mathrm {atan}\left (c+d\,x\right )\right )}^2}{{\left (c\,e+d\,e\,x\right )}^4} \,d x \]
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