Integrand size = 16, antiderivative size = 128 \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=-\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}-\frac {3 i d^2 (c+d x) \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right )}{b^3}+\frac {3 d^3 \operatorname {PolyLog}\left (3,-e^{2 i (a+b x)}\right )}{2 b^4}+\frac {(c+d x)^3 \tan (a+b x)}{b} \]
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Time = 0.26 (sec) , antiderivative size = 128, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.438, Rules used = {3801, 3800, 2221, 2611, 2320, 6724, 32} \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=\frac {3 d^3 \operatorname {PolyLog}\left (3,-e^{2 i (a+b x)}\right )}{2 b^4}-\frac {3 i d^2 (c+d x) \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right )}{b^3}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}+\frac {(c+d x)^3 \tan (a+b x)}{b}-\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d} \]
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Rule 32
Rule 2221
Rule 2320
Rule 2611
Rule 3800
Rule 3801
Rule 6724
Rubi steps \begin{align*} \text {integral}& = \frac {(c+d x)^3 \tan (a+b x)}{b}-\frac {(3 d) \int (c+d x)^2 \tan (a+b x) \, dx}{b}-\int (c+d x)^3 \, dx \\ & = -\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {(c+d x)^3 \tan (a+b x)}{b}+\frac {(6 i d) \int \frac {e^{2 i (a+b x)} (c+d x)^2}{1+e^{2 i (a+b x)}} \, dx}{b} \\ & = -\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}+\frac {(c+d x)^3 \tan (a+b x)}{b}-\frac {\left (6 d^2\right ) \int (c+d x) \log \left (1+e^{2 i (a+b x)}\right ) \, dx}{b^2} \\ & = -\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}-\frac {3 i d^2 (c+d x) \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right )}{b^3}+\frac {(c+d x)^3 \tan (a+b x)}{b}+\frac {\left (3 i d^3\right ) \int \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right ) \, dx}{b^3} \\ & = -\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}-\frac {3 i d^2 (c+d x) \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right )}{b^3}+\frac {(c+d x)^3 \tan (a+b x)}{b}+\frac {\left (3 d^3\right ) \text {Subst}\left (\int \frac {\operatorname {PolyLog}(2,-x)}{x} \, dx,x,e^{2 i (a+b x)}\right )}{2 b^4} \\ & = -\frac {i (c+d x)^3}{b}-\frac {(c+d x)^4}{4 d}+\frac {3 d (c+d x)^2 \log \left (1+e^{2 i (a+b x)}\right )}{b^2}-\frac {3 i d^2 (c+d x) \operatorname {PolyLog}\left (2,-e^{2 i (a+b x)}\right )}{b^3}+\frac {3 d^3 \operatorname {PolyLog}\left (3,-e^{2 i (a+b x)}\right )}{2 b^4}+\frac {(c+d x)^3 \tan (a+b x)}{b} \\ \end{align*}
Both result and optimal contain complex but leaf count is larger than twice the leaf count of optimal. \(424\) vs. \(2(128)=256\).
Time = 6.54 (sec) , antiderivative size = 424, normalized size of antiderivative = 3.31 \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=-\frac {1}{4} x \left (4 c^3+6 c^2 d x+4 c d^2 x^2+d^3 x^3\right )+\frac {i d^3 e^{-i a} \left (2 b^2 x^2 \left (2 b x-3 i \left (1+e^{2 i a}\right ) \log \left (1+e^{-2 i (a+b x)}\right )\right )+6 b \left (1+e^{2 i a}\right ) x \operatorname {PolyLog}\left (2,-e^{-2 i (a+b x)}\right )-3 i \left (1+e^{2 i a}\right ) \operatorname {PolyLog}\left (3,-e^{-2 i (a+b x)}\right )\right ) \sec (a)}{4 b^4}+\frac {3 c^2 d \sec (a) (\cos (a) \log (\cos (a) \cos (b x)-\sin (a) \sin (b x))+b x \sin (a))}{b^2 \left (\cos ^2(a)+\sin ^2(a)\right )}+\frac {3 c d^2 \csc (a) \left (b^2 e^{-i \arctan (\cot (a))} x^2-\frac {\cot (a) \left (i b x (-\pi -2 \arctan (\cot (a)))-\pi \log \left (1+e^{-2 i b x}\right )-2 (b x-\arctan (\cot (a))) \log \left (1-e^{2 i (b x-\arctan (\cot (a)))}\right )+\pi \log (\cos (b x))-2 \arctan (\cot (a)) \log (\sin (b x-\arctan (\cot (a))))+i \operatorname {PolyLog}\left (2,e^{2 i (b x-\arctan (\cot (a)))}\right )\right )}{\sqrt {1+\cot ^2(a)}}\right ) \sec (a)}{b^3 \sqrt {\csc ^2(a) \left (\cos ^2(a)+\sin ^2(a)\right )}}+\frac {\sec (a) \sec (a+b x) \left (c^3 \sin (b x)+3 c^2 d x \sin (b x)+3 c d^2 x^2 \sin (b x)+d^3 x^3 \sin (b x)\right )}{b} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 355 vs. \(2 (116 ) = 232\).
Time = 1.70 (sec) , antiderivative size = 356, normalized size of antiderivative = 2.78
method | result | size |
risch | \(-\frac {d^{3} x^{4}}{4}-d^{2} c \,x^{3}-\frac {3 d \,c^{2} x^{2}}{2}-c^{3} x -\frac {c^{4}}{4 d}-\frac {3 i d^{3} \operatorname {polylog}\left (2, -{\mathrm e}^{2 i \left (x b +a \right )}\right ) x}{b^{3}}+\frac {3 d^{3} \ln \left ({\mathrm e}^{2 i \left (x b +a \right )}+1\right ) x^{2}}{b^{2}}+\frac {3 d^{3} \operatorname {polylog}\left (3, -{\mathrm e}^{2 i \left (x b +a \right )}\right )}{2 b^{4}}+\frac {6 d^{2} c \ln \left ({\mathrm e}^{2 i \left (x b +a \right )}+1\right ) x}{b^{2}}-\frac {6 i d^{2} c \,x^{2}}{b}+\frac {6 i d^{3} a^{2} x}{b^{3}}+\frac {2 i \left (d^{3} x^{3}+3 c \,d^{2} x^{2}+3 c^{2} d x +c^{3}\right )}{b \left ({\mathrm e}^{2 i \left (x b +a \right )}+1\right )}+\frac {12 d^{2} c a \ln \left ({\mathrm e}^{i \left (x b +a \right )}\right )}{b^{3}}-\frac {3 i d^{2} c \operatorname {polylog}\left (2, -{\mathrm e}^{2 i \left (x b +a \right )}\right )}{b^{3}}-\frac {6 i d^{2} c \,a^{2}}{b^{3}}-\frac {6 d^{3} a^{2} \ln \left ({\mathrm e}^{i \left (x b +a \right )}\right )}{b^{4}}+\frac {3 d \,c^{2} \ln \left ({\mathrm e}^{2 i \left (x b +a \right )}+1\right )}{b^{2}}-\frac {6 d \,c^{2} \ln \left ({\mathrm e}^{i \left (x b +a \right )}\right )}{b^{2}}-\frac {12 i d^{2} c x a}{b^{2}}-\frac {2 i d^{3} x^{3}}{b}+\frac {4 i d^{3} a^{3}}{b^{4}}\) | \(356\) |
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 373 vs. \(2 (113) = 226\).
Time = 0.26 (sec) , antiderivative size = 373, normalized size of antiderivative = 2.91 \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=-\frac {b^{4} d^{3} x^{4} + 4 \, b^{4} c d^{2} x^{3} + 6 \, b^{4} c^{2} d x^{2} + 4 \, b^{4} c^{3} x - 3 \, d^{3} {\rm polylog}\left (3, \frac {\tan \left (b x + a\right )^{2} + 2 i \, \tan \left (b x + a\right ) - 1}{\tan \left (b x + a\right )^{2} + 1}\right ) - 3 \, d^{3} {\rm polylog}\left (3, \frac {\tan \left (b x + a\right )^{2} - 2 i \, \tan \left (b x + a\right ) - 1}{\tan \left (b x + a\right )^{2} + 1}\right ) + 6 \, {\left (-i \, b d^{3} x - i \, b c d^{2}\right )} {\rm Li}_2\left (\frac {2 \, {\left (i \, \tan \left (b x + a\right ) - 1\right )}}{\tan \left (b x + a\right )^{2} + 1} + 1\right ) + 6 \, {\left (i \, b d^{3} x + i \, b c d^{2}\right )} {\rm Li}_2\left (\frac {2 \, {\left (-i \, \tan \left (b x + a\right ) - 1\right )}}{\tan \left (b x + a\right )^{2} + 1} + 1\right ) - 6 \, {\left (b^{2} d^{3} x^{2} + 2 \, b^{2} c d^{2} x + b^{2} c^{2} d\right )} \log \left (-\frac {2 \, {\left (i \, \tan \left (b x + a\right ) - 1\right )}}{\tan \left (b x + a\right )^{2} + 1}\right ) - 6 \, {\left (b^{2} d^{3} x^{2} + 2 \, b^{2} c d^{2} x + b^{2} c^{2} d\right )} \log \left (-\frac {2 \, {\left (-i \, \tan \left (b x + a\right ) - 1\right )}}{\tan \left (b x + a\right )^{2} + 1}\right ) - 4 \, {\left (b^{3} d^{3} x^{3} + 3 \, b^{3} c d^{2} x^{2} + 3 \, b^{3} c^{2} d x + b^{3} c^{3}\right )} \tan \left (b x + a\right )}{4 \, b^{4}} \]
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\[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=\int \left (c + d x\right )^{3} \tan ^{2}{\left (a + b x \right )}\, dx \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 1363 vs. \(2 (113) = 226\).
Time = 0.40 (sec) , antiderivative size = 1363, normalized size of antiderivative = 10.65 \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=\text {Too large to display} \]
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\[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=\int { {\left (d x + c\right )}^{3} \tan \left (b x + a\right )^{2} \,d x } \]
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Timed out. \[ \int (c+d x)^3 \tan ^2(a+b x) \, dx=\int {\mathrm {tan}\left (a+b\,x\right )}^2\,{\left (c+d\,x\right )}^3 \,d x \]
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