Integrand size = 24, antiderivative size = 476 \[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=-\frac {17 c \sqrt {c+a^2 c x^2}}{280 a^4}-\frac {17 \left (c+a^2 c x^2\right )^{3/2}}{1260 a^4}+\frac {\left (c+a^2 c x^2\right )^{5/2}}{105 a^4 c}+\frac {3 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{56 a^3}-\frac {23 c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{420 a}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {2 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{35 a^4}+\frac {c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{35 a^2}+\frac {8}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {17 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{140 a^4 \sqrt {c+a^2 c x^2}}+\frac {17 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{280 a^4 \sqrt {c+a^2 c x^2}}-\frac {17 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{280 a^4 \sqrt {c+a^2 c x^2}} \]
[Out]
Time = 2.90 (sec) , antiderivative size = 476, normalized size of antiderivative = 1.00, number of steps used = 75, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {5070, 5072, 267, 5010, 5006, 5050, 272, 45} \[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\frac {c x^2 \arctan (a x)^2 \sqrt {a^2 c x^2+c}}{35 a^2}+\frac {1}{7} a^2 c x^6 \arctan (a x)^2 \sqrt {a^2 c x^2+c}-\frac {1}{21} a c x^5 \arctan (a x) \sqrt {a^2 c x^2+c}+\frac {8}{35} c x^4 \arctan (a x)^2 \sqrt {a^2 c x^2+c}-\frac {23 c x^3 \arctan (a x) \sqrt {a^2 c x^2+c}}{420 a}-\frac {17 i c^2 \sqrt {a^2 x^2+1} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{140 a^4 \sqrt {a^2 c x^2+c}}-\frac {2 c \arctan (a x)^2 \sqrt {a^2 c x^2+c}}{35 a^4}+\frac {17 i c^2 \sqrt {a^2 x^2+1} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {i a x+1}}{\sqrt {1-i a x}}\right )}{280 a^4 \sqrt {a^2 c x^2+c}}-\frac {17 i c^2 \sqrt {a^2 x^2+1} \operatorname {PolyLog}\left (2,\frac {i \sqrt {i a x+1}}{\sqrt {1-i a x}}\right )}{280 a^4 \sqrt {a^2 c x^2+c}}+\frac {\left (a^2 c x^2+c\right )^{5/2}}{105 a^4 c}-\frac {17 \left (a^2 c x^2+c\right )^{3/2}}{1260 a^4}-\frac {17 c \sqrt {a^2 c x^2+c}}{280 a^4}+\frac {3 c x \arctan (a x) \sqrt {a^2 c x^2+c}}{56 a^3} \]
[In]
[Out]
Rule 45
Rule 267
Rule 272
Rule 5006
Rule 5010
Rule 5050
Rule 5070
Rule 5072
Rubi steps \begin{align*} \text {integral}& = c \int x^3 \sqrt {c+a^2 c x^2} \arctan (a x)^2 \, dx+\left (a^2 c\right ) \int x^5 \sqrt {c+a^2 c x^2} \arctan (a x)^2 \, dx \\ & = c^2 \int \frac {x^3 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx+2 \left (\left (a^2 c^2\right ) \int \frac {x^5 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx\right )+\left (a^4 c^2\right ) \int \frac {x^7 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx \\ & = \frac {c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{3 a^2}+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {\left (2 c^2\right ) \int \frac {x \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx}{3 a^2}-\frac {\left (2 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{3 a}+2 \left (\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {1}{5} \left (4 c^2\right ) \int \frac {x^3 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx-\frac {1}{5} \left (2 a c^2\right ) \int \frac {x^4 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx\right )-\frac {1}{7} \left (6 a^2 c^2\right ) \int \frac {x^5 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx-\frac {1}{7} \left (2 a^3 c^2\right ) \int \frac {x^6 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx \\ & = -\frac {c x \sqrt {c+a^2 c x^2} \arctan (a x)}{3 a^3}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {2 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{3 a^4}+\frac {c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{3 a^2}-\frac {6}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{35} \left (24 c^2\right ) \int \frac {x^3 \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx+\frac {c^2 \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{3 a^3}+\frac {\left (4 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{3 a^3}+\frac {c^2 \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{3 a^2}+2 \left (-\frac {c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{10 a}-\frac {4 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^2}+\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{10} c^2 \int \frac {x^3}{\sqrt {c+a^2 c x^2}} \, dx+\frac {\left (8 c^2\right ) \int \frac {x \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx}{15 a^2}+\frac {\left (3 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{10 a}+\frac {\left (8 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{15 a}\right )+\frac {1}{21} \left (5 a c^2\right ) \int \frac {x^4 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx+\frac {1}{35} \left (12 a c^2\right ) \int \frac {x^4 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx+\frac {1}{21} \left (a^2 c^2\right ) \int \frac {x^5}{\sqrt {c+a^2 c x^2}} \, dx \\ & = \frac {c \sqrt {c+a^2 c x^2}}{3 a^4}-\frac {c x \sqrt {c+a^2 c x^2} \arctan (a x)}{3 a^3}+\frac {61 c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{420 a}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {2 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{3 a^4}+\frac {59 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^2}-\frac {6}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {1}{84} \left (5 c^2\right ) \int \frac {x^3}{\sqrt {c+a^2 c x^2}} \, dx-\frac {1}{35} \left (3 c^2\right ) \int \frac {x^3}{\sqrt {c+a^2 c x^2}} \, dx+2 \left (\frac {5 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{12 a^3}-\frac {c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{10 a}+\frac {8 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^4}-\frac {4 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^2}+\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{20} c^2 \text {Subst}\left (\int \frac {x}{\sqrt {c+a^2 c x}} \, dx,x,x^2\right )-\frac {\left (3 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{20 a^3}-\frac {\left (4 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{15 a^3}-\frac {\left (16 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{15 a^3}-\frac {\left (3 c^2\right ) \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{20 a^2}-\frac {\left (4 c^2\right ) \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{15 a^2}\right )-\frac {\left (16 c^2\right ) \int \frac {x \arctan (a x)^2}{\sqrt {c+a^2 c x^2}} \, dx}{35 a^2}-\frac {\left (5 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{28 a}-\frac {\left (9 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{35 a}-\frac {\left (16 c^2\right ) \int \frac {x^2 \arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{35 a}+\frac {1}{42} \left (a^2 c^2\right ) \text {Subst}\left (\int \frac {x^2}{\sqrt {c+a^2 c x}} \, dx,x,x^2\right )+\frac {\left (c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{3 a^3 \sqrt {c+a^2 c x^2}}+\frac {\left (4 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{3 a^3 \sqrt {c+a^2 c x^2}} \\ & = \frac {c \sqrt {c+a^2 c x^2}}{3 a^4}-\frac {131 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{168 a^3}+\frac {61 c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{420 a}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {118 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^4}+\frac {59 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^2}-\frac {6}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {10 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}+\frac {5 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}-\frac {5 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}-\frac {1}{168} \left (5 c^2\right ) \text {Subst}\left (\int \frac {x}{\sqrt {c+a^2 c x}} \, dx,x,x^2\right )-\frac {1}{70} \left (3 c^2\right ) \text {Subst}\left (\int \frac {x}{\sqrt {c+a^2 c x}} \, dx,x,x^2\right )+\frac {\left (5 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{56 a^3}+\frac {\left (9 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{70 a^3}+\frac {\left (8 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{35 a^3}+\frac {\left (32 c^2\right ) \int \frac {\arctan (a x)}{\sqrt {c+a^2 c x^2}} \, dx}{35 a^3}+\frac {\left (5 c^2\right ) \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{56 a^2}+\frac {\left (9 c^2\right ) \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{70 a^2}+\frac {\left (8 c^2\right ) \int \frac {x}{\sqrt {c+a^2 c x^2}} \, dx}{35 a^2}+\frac {1}{42} \left (a^2 c^2\right ) \text {Subst}\left (\int \left (\frac {1}{a^4 \sqrt {c+a^2 c x}}-\frac {2 \sqrt {c+a^2 c x}}{a^4 c}+\frac {\left (c+a^2 c x\right )^{3/2}}{a^4 c^2}\right ) \, dx,x,x^2\right )+2 \left (-\frac {5 c \sqrt {c+a^2 c x^2}}{12 a^4}+\frac {5 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{12 a^3}-\frac {c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{10 a}+\frac {8 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^4}-\frac {4 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^2}+\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{20} c^2 \text {Subst}\left (\int \left (-\frac {1}{a^2 \sqrt {c+a^2 c x}}+\frac {\sqrt {c+a^2 c x}}{a^2 c}\right ) \, dx,x,x^2\right )-\frac {\left (3 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{20 a^3 \sqrt {c+a^2 c x^2}}-\frac {\left (4 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{15 a^3 \sqrt {c+a^2 c x^2}}-\frac {\left (16 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{15 a^3 \sqrt {c+a^2 c x^2}}\right ) \\ & = \frac {139 c \sqrt {c+a^2 c x^2}}{168 a^4}-\frac {2 \left (c+a^2 c x^2\right )^{3/2}}{63 a^4}+\frac {\left (c+a^2 c x^2\right )^{5/2}}{105 a^4 c}-\frac {131 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{168 a^3}+\frac {61 c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{420 a}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {118 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^4}+\frac {59 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^2}-\frac {6}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {10 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}+\frac {5 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}-\frac {5 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{3 a^4 \sqrt {c+a^2 c x^2}}+2 \left (-\frac {31 c \sqrt {c+a^2 c x^2}}{60 a^4}+\frac {\left (c+a^2 c x^2\right )^{3/2}}{30 a^4}+\frac {5 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{12 a^3}-\frac {c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{10 a}+\frac {8 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^4}-\frac {4 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^2}+\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {89 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{30 a^4 \sqrt {c+a^2 c x^2}}-\frac {89 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{60 a^4 \sqrt {c+a^2 c x^2}}+\frac {89 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{60 a^4 \sqrt {c+a^2 c x^2}}\right )-\frac {1}{168} \left (5 c^2\right ) \text {Subst}\left (\int \left (-\frac {1}{a^2 \sqrt {c+a^2 c x}}+\frac {\sqrt {c+a^2 c x}}{a^2 c}\right ) \, dx,x,x^2\right )-\frac {1}{70} \left (3 c^2\right ) \text {Subst}\left (\int \left (-\frac {1}{a^2 \sqrt {c+a^2 c x}}+\frac {\sqrt {c+a^2 c x}}{a^2 c}\right ) \, dx,x,x^2\right )+\frac {\left (5 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{56 a^3 \sqrt {c+a^2 c x^2}}+\frac {\left (9 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{70 a^3 \sqrt {c+a^2 c x^2}}+\frac {\left (8 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{35 a^3 \sqrt {c+a^2 c x^2}}+\frac {\left (32 c^2 \sqrt {1+a^2 x^2}\right ) \int \frac {\arctan (a x)}{\sqrt {1+a^2 x^2}} \, dx}{35 a^3 \sqrt {c+a^2 c x^2}} \\ & = \frac {817 c \sqrt {c+a^2 c x^2}}{840 a^4}-\frac {101 \left (c+a^2 c x^2\right )^{3/2}}{1260 a^4}+\frac {\left (c+a^2 c x^2\right )^{5/2}}{105 a^4 c}-\frac {131 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{168 a^3}+\frac {61 c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{420 a}-\frac {1}{21} a c x^5 \sqrt {c+a^2 c x^2} \arctan (a x)-\frac {118 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^4}+\frac {59 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{105 a^2}-\frac {6}{35} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {1}{7} a^2 c x^6 \sqrt {c+a^2 c x^2} \arctan (a x)^2-\frac {2543 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{420 a^4 \sqrt {c+a^2 c x^2}}+\frac {2543 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{840 a^4 \sqrt {c+a^2 c x^2}}-\frac {2543 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{840 a^4 \sqrt {c+a^2 c x^2}}+2 \left (-\frac {31 c \sqrt {c+a^2 c x^2}}{60 a^4}+\frac {\left (c+a^2 c x^2\right )^{3/2}}{30 a^4}+\frac {5 c x \sqrt {c+a^2 c x^2} \arctan (a x)}{12 a^3}-\frac {c x^3 \sqrt {c+a^2 c x^2} \arctan (a x)}{10 a}+\frac {8 c \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^4}-\frac {4 c x^2 \sqrt {c+a^2 c x^2} \arctan (a x)^2}{15 a^2}+\frac {1}{5} c x^4 \sqrt {c+a^2 c x^2} \arctan (a x)^2+\frac {89 i c^2 \sqrt {1+a^2 x^2} \arctan (a x) \arctan \left (\frac {\sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{30 a^4 \sqrt {c+a^2 c x^2}}-\frac {89 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{60 a^4 \sqrt {c+a^2 c x^2}}+\frac {89 i c^2 \sqrt {1+a^2 x^2} \operatorname {PolyLog}\left (2,\frac {i \sqrt {1+i a x}}{\sqrt {1-i a x}}\right )}{60 a^4 \sqrt {c+a^2 c x^2}}\right ) \\ \end{align*}
Time = 3.92 (sec) , antiderivative size = 797, normalized size of antiderivative = 1.67 \[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\frac {c \left (1+a^2 x^2\right )^2 \sqrt {c+a^2 c x^2} \left (-168 \left (50-32 \arctan (a x)^2+72 \cos (2 \arctan (a x))+160 \arctan (a x)^2 \cos (2 \arctan (a x))+22 \cos (4 \arctan (a x))-\frac {110 \arctan (a x) \log \left (1-i e^{i \arctan (a x)}\right )}{\sqrt {1+a^2 x^2}}-55 \arctan (a x) \cos (3 \arctan (a x)) \log \left (1-i e^{i \arctan (a x)}\right )-11 \arctan (a x) \cos (5 \arctan (a x)) \log \left (1-i e^{i \arctan (a x)}\right )+\frac {110 \arctan (a x) \log \left (1+i e^{i \arctan (a x)}\right )}{\sqrt {1+a^2 x^2}}+55 \arctan (a x) \cos (3 \arctan (a x)) \log \left (1+i e^{i \arctan (a x)}\right )+11 \arctan (a x) \cos (5 \arctan (a x)) \log \left (1+i e^{i \arctan (a x)}\right )-\frac {176 i \operatorname {PolyLog}\left (2,-i e^{i \arctan (a x)}\right )}{\left (1+a^2 x^2\right )^{5/2}}+\frac {176 i \operatorname {PolyLog}\left (2,i e^{i \arctan (a x)}\right )}{\left (1+a^2 x^2\right )^{5/2}}+4 \arctan (a x) \sin (2 \arctan (a x))-22 \arctan (a x) \sin (4 \arctan (a x))\right )+\left (1+a^2 x^2\right ) \left (4116+10944 \arctan (a x)^2+6262 \cos (2 \arctan (a x))-5376 \arctan (a x)^2 \cos (2 \arctan (a x))+2764 \cos (4 \arctan (a x))+6720 \arctan (a x)^2 \cos (4 \arctan (a x))+618 \cos (6 \arctan (a x))-\frac {10815 \arctan (a x) \log \left (1-i e^{i \arctan (a x)}\right )}{\sqrt {1+a^2 x^2}}-6489 \arctan (a x) \cos (3 \arctan (a x)) \log \left (1-i e^{i \arctan (a x)}\right )-2163 \arctan (a x) \cos (5 \arctan (a x)) \log \left (1-i e^{i \arctan (a x)}\right )-309 \arctan (a x) \cos (7 \arctan (a x)) \log \left (1-i e^{i \arctan (a x)}\right )+\frac {10815 \arctan (a x) \log \left (1+i e^{i \arctan (a x)}\right )}{\sqrt {1+a^2 x^2}}+6489 \arctan (a x) \cos (3 \arctan (a x)) \log \left (1+i e^{i \arctan (a x)}\right )+2163 \arctan (a x) \cos (5 \arctan (a x)) \log \left (1+i e^{i \arctan (a x)}\right )+309 \arctan (a x) \cos (7 \arctan (a x)) \log \left (1+i e^{i \arctan (a x)}\right )-\frac {19776 i \operatorname {PolyLog}\left (2,-i e^{i \arctan (a x)}\right )}{\left (1+a^2 x^2\right )^{7/2}}+\frac {19776 i \operatorname {PolyLog}\left (2,i e^{i \arctan (a x)}\right )}{\left (1+a^2 x^2\right )^{7/2}}-1266 \arctan (a x) \sin (2 \arctan (a x))+360 \arctan (a x) \sin (4 \arctan (a x))-618 \arctan (a x) \sin (6 \arctan (a x))\right )\right )}{161280 a^4} \]
[In]
[Out]
Time = 1.36 (sec) , antiderivative size = 271, normalized size of antiderivative = 0.57
method | result | size |
default | \(\frac {c \sqrt {c \left (a x -i\right ) \left (a x +i\right )}\, \left (360 a^{6} x^{6} \arctan \left (a x \right )^{2}-120 \arctan \left (a x \right ) a^{5} x^{5}+576 a^{4} \arctan \left (a x \right )^{2} x^{4}+24 a^{4} x^{4}-138 \arctan \left (a x \right ) x^{3} a^{3}+72 x^{2} \arctan \left (a x \right )^{2} a^{2}+14 a^{2} x^{2}+135 x \arctan \left (a x \right ) a -144 \arctan \left (a x \right )^{2}-163\right )}{2520 a^{4}}-\frac {17 c \sqrt {c \left (a x -i\right ) \left (a x +i\right )}\, \left (\arctan \left (a x \right ) \ln \left (1+\frac {i \left (i a x +1\right )}{\sqrt {a^{2} x^{2}+1}}\right )-\arctan \left (a x \right ) \ln \left (1-\frac {i \left (i a x +1\right )}{\sqrt {a^{2} x^{2}+1}}\right )-i \operatorname {dilog}\left (1+\frac {i \left (i a x +1\right )}{\sqrt {a^{2} x^{2}+1}}\right )+i \operatorname {dilog}\left (1-\frac {i \left (i a x +1\right )}{\sqrt {a^{2} x^{2}+1}}\right )\right )}{280 a^{4} \sqrt {a^{2} x^{2}+1}}\) | \(271\) |
[In]
[Out]
\[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\int { {\left (a^{2} c x^{2} + c\right )}^{\frac {3}{2}} x^{3} \arctan \left (a x\right )^{2} \,d x } \]
[In]
[Out]
\[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\int x^{3} \left (c \left (a^{2} x^{2} + 1\right )\right )^{\frac {3}{2}} \operatorname {atan}^{2}{\left (a x \right )}\, dx \]
[In]
[Out]
\[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\int { {\left (a^{2} c x^{2} + c\right )}^{\frac {3}{2}} x^{3} \arctan \left (a x\right )^{2} \,d x } \]
[In]
[Out]
Exception generated. \[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\text {Exception raised: TypeError} \]
[In]
[Out]
Timed out. \[ \int x^3 \left (c+a^2 c x^2\right )^{3/2} \arctan (a x)^2 \, dx=\int x^3\,{\mathrm {atan}\left (a\,x\right )}^2\,{\left (c\,a^2\,x^2+c\right )}^{3/2} \,d x \]
[In]
[Out]