Optimal. Leaf size=271 \[ \frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (-c x+i)}+\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (-c x+i)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (-c x+i)}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (-c x+i)^2}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}-\frac{21 i b^3}{64 c d^3 (-c x+i)}+\frac{3 b^3}{64 c d^3 (-c x+i)^2}+\frac{21 i b^3 \tan ^{-1}(c x)}{64 c d^3} \]
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Rubi [A] time = 0.403001, antiderivative size = 271, normalized size of antiderivative = 1., number of steps used = 24, number of rules used = 6, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.273, Rules used = {4864, 4862, 627, 44, 203, 4884} \[ \frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (-c x+i)}+\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (-c x+i)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (-c x+i)}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (-c x+i)^2}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}-\frac{21 i b^3}{64 c d^3 (-c x+i)}+\frac{3 b^3}{64 c d^3 (-c x+i)^2}+\frac{21 i b^3 \tan ^{-1}(c x)}{64 c d^3} \]
Antiderivative was successfully verified.
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Rule 4864
Rule 4862
Rule 627
Rule 44
Rule 203
Rule 4884
Rubi steps
\begin{align*} \int \frac{\left (a+b \tan ^{-1}(c x)\right )^3}{(d+i c d x)^3} \, dx &=\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{(3 i b) \int \left (\frac{i \left (a+b \tan ^{-1}(c x)\right )^2}{2 d^2 (-i+c x)^3}-\frac{\left (a+b \tan ^{-1}(c x)\right )^2}{4 d^2 (-i+c x)^2}+\frac{\left (a+b \tan ^{-1}(c x)\right )^2}{4 d^2 \left (1+c^2 x^2\right )}\right ) \, dx}{2 d}\\ &=\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}+\frac{(3 i b) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2}{(-i+c x)^2} \, dx}{8 d^3}-\frac{(3 i b) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2}{1+c^2 x^2} \, dx}{8 d^3}+\frac{(3 b) \int \frac{\left (a+b \tan ^{-1}(c x)\right )^2}{(-i+c x)^3} \, dx}{4 d^3}\\ &=-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}+\frac{\left (3 i b^2\right ) \int \left (-\frac{i \left (a+b \tan ^{-1}(c x)\right )}{2 (-i+c x)^2}+\frac{i \left (a+b \tan ^{-1}(c x)\right )}{2 \left (1+c^2 x^2\right )}\right ) \, dx}{4 d^3}+\frac{\left (3 b^2\right ) \int \left (-\frac{i \left (a+b \tan ^{-1}(c x)\right )}{2 (-i+c x)^3}+\frac{a+b \tan ^{-1}(c x)}{4 (-i+c x)^2}-\frac{a+b \tan ^{-1}(c x)}{4 \left (1+c^2 x^2\right )}\right ) \, dx}{4 d^3}\\ &=-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{\left (3 i b^2\right ) \int \frac{a+b \tan ^{-1}(c x)}{(-i+c x)^3} \, dx}{8 d^3}+\frac{\left (3 b^2\right ) \int \frac{a+b \tan ^{-1}(c x)}{(-i+c x)^2} \, dx}{16 d^3}-\frac{\left (3 b^2\right ) \int \frac{a+b \tan ^{-1}(c x)}{1+c^2 x^2} \, dx}{16 d^3}+\frac{\left (3 b^2\right ) \int \frac{a+b \tan ^{-1}(c x)}{(-i+c x)^2} \, dx}{8 d^3}-\frac{\left (3 b^2\right ) \int \frac{a+b \tan ^{-1}(c x)}{1+c^2 x^2} \, dx}{8 d^3}\\ &=\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)^2}+\frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{\left (3 i b^3\right ) \int \frac{1}{(-i+c x)^2 \left (1+c^2 x^2\right )} \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \frac{1}{(-i+c x) \left (1+c^2 x^2\right )} \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \frac{1}{(-i+c x) \left (1+c^2 x^2\right )} \, dx}{8 d^3}\\ &=\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)^2}+\frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{\left (3 i b^3\right ) \int \frac{1}{(-i+c x)^3 (i+c x)} \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \frac{1}{(-i+c x)^2 (i+c x)} \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \frac{1}{(-i+c x)^2 (i+c x)} \, dx}{8 d^3}\\ &=\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)^2}+\frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}-\frac{\left (3 i b^3\right ) \int \left (-\frac{i}{2 (-i+c x)^3}+\frac{1}{4 (-i+c x)^2}-\frac{1}{4 \left (1+c^2 x^2\right )}\right ) \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \left (-\frac{i}{2 (-i+c x)^2}+\frac{i}{2 \left (1+c^2 x^2\right )}\right ) \, dx}{16 d^3}+\frac{\left (3 b^3\right ) \int \left (-\frac{i}{2 (-i+c x)^2}+\frac{i}{2 \left (1+c^2 x^2\right )}\right ) \, dx}{8 d^3}\\ &=\frac{3 b^3}{64 c d^3 (i-c x)^2}-\frac{21 i b^3}{64 c d^3 (i-c x)}+\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)^2}+\frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}+\frac{\left (3 i b^3\right ) \int \frac{1}{1+c^2 x^2} \, dx}{64 d^3}+\frac{\left (3 i b^3\right ) \int \frac{1}{1+c^2 x^2} \, dx}{32 d^3}+\frac{\left (3 i b^3\right ) \int \frac{1}{1+c^2 x^2} \, dx}{16 d^3}\\ &=\frac{3 b^3}{64 c d^3 (i-c x)^2}-\frac{21 i b^3}{64 c d^3 (i-c x)}+\frac{21 i b^3 \tan ^{-1}(c x)}{64 c d^3}+\frac{3 i b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)^2}+\frac{9 b^2 \left (a+b \tan ^{-1}(c x)\right )}{16 c d^3 (i-c x)}-\frac{9 b \left (a+b \tan ^{-1}(c x)\right )^2}{32 c d^3}-\frac{3 b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)^2}+\frac{3 i b \left (a+b \tan ^{-1}(c x)\right )^2}{8 c d^3 (i-c x)}-\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{8 c d^3}+\frac{i \left (a+b \tan ^{-1}(c x)\right )^3}{2 c d^3 (1+i c x)^2}\\ \end{align*}
Mathematica [A] time = 0.273388, size = 183, normalized size = 0.68 \[ -\frac{i \left (3 b (c x+i) \tan ^{-1}(c x) \left (8 a^2 (c x-3 i)+4 a b (-5-3 i c x)+b^2 (-7 c x+9 i)\right )+24 a^2 b (c x-2 i)+32 a^3+12 a b^2 (-4-3 i c x)+6 b^2 (c x+i) \tan ^{-1}(c x)^2 (4 a (c x-3 i)+b (-5-3 i c x))+8 b^3 \left (c^2 x^2-2 i c x+3\right ) \tan ^{-1}(c x)^3+3 b^3 (-7 c x+8 i)\right )}{64 c d^3 (c x-i)^2} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.395, size = 711, normalized size = 2.6 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.48003, size = 313, normalized size = 1.15 \begin{align*} -\frac{{\left (8 i \, b^{3} c^{2} x^{2} + 16 \, b^{3} c x + 24 i \, b^{3}\right )} \arctan \left (c x\right )^{3} + 32 i \, a^{3} + 48 \, a^{2} b - 48 i \, a b^{2} - 24 \, b^{3} +{\left (24 i \, a^{2} b + 36 \, a b^{2} - 21 i \, b^{3}\right )} c x -{\left (6 \,{\left (-4 i \, a b^{2} - 3 \, b^{3}\right )} c^{2} x^{2} - 72 i \, a b^{2} - 30 \, b^{3} -{\left (48 \, a b^{2} - 12 i \, b^{3}\right )} c x\right )} \arctan \left (c x\right )^{2} +{\left ({\left (24 i \, a^{2} b + 36 \, a b^{2} - 21 i \, b^{3}\right )} c^{2} x^{2} + 72 i \, a^{2} b + 60 \, a b^{2} - 27 i \, b^{3} + 6 \,{\left (8 \, a^{2} b - 4 i \, a b^{2} - b^{3}\right )} c x\right )} \arctan \left (c x\right )}{64 \, c^{3} d^{3} x^{2} - 128 i \, c^{2} d^{3} x - 64 \, c d^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.9108, size = 618, normalized size = 2.28 \begin{align*} -\frac{{\left (2 \, b^{3} c^{2} x^{2} - 4 i \, b^{3} c x + 6 \, b^{3}\right )} \log \left (-\frac{c x + i}{c x - i}\right )^{3} + 64 i \, a^{3} + 96 \, a^{2} b - 96 i \, a b^{2} - 48 \, b^{3} -{\left (-48 i \, a^{2} b - 72 \, a b^{2} + 42 i \, b^{3}\right )} c x -{\left ({\left (12 i \, a b^{2} + 9 \, b^{3}\right )} c^{2} x^{2} + 36 i \, a b^{2} + 15 \, b^{3} + 6 \,{\left (4 \, a b^{2} - i \, b^{3}\right )} c x\right )} \log \left (-\frac{c x + i}{c x - i}\right )^{2} -{\left ({\left (24 \, a^{2} b - 36 i \, a b^{2} - 21 \, b^{3}\right )} c^{2} x^{2} + 72 \, a^{2} b - 60 i \, a b^{2} - 27 \, b^{3} +{\left (-48 i \, a^{2} b - 24 \, a b^{2} + 6 i \, b^{3}\right )} c x\right )} \log \left (-\frac{c x + i}{c x - i}\right )}{128 \, c^{3} d^{3} x^{2} - 256 i \, c^{2} d^{3} x - 128 \, c d^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b \arctan \left (c x\right ) + a\right )}^{3}}{{\left (i \, c d x + d\right )}^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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