Integrand size = 23, antiderivative size = 107 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=\frac {(a+b)^3 \log (\cosh (c+d x))}{d}-\frac {(a+b)^3 \tanh ^2(c+d x)}{2 d}-\frac {b \left (3 a^2+3 a b+b^2\right ) \tanh ^4(c+d x)}{4 d}-\frac {b^2 (3 a+b) \tanh ^6(c+d x)}{6 d}-\frac {b^3 \tanh ^8(c+d x)}{8 d} \]
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Time = 0.12 (sec) , antiderivative size = 107, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.130, Rules used = {3751, 457, 78} \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=-\frac {b \left (3 a^2+3 a b+b^2\right ) \tanh ^4(c+d x)}{4 d}-\frac {b^2 (3 a+b) \tanh ^6(c+d x)}{6 d}-\frac {(a+b)^3 \tanh ^2(c+d x)}{2 d}+\frac {(a+b)^3 \log (\cosh (c+d x))}{d}-\frac {b^3 \tanh ^8(c+d x)}{8 d} \]
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Rule 78
Rule 457
Rule 3751
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \frac {x^3 \left (a+b x^2\right )^3}{1-x^2} \, dx,x,\tanh (c+d x)\right )}{d} \\ & = \frac {\text {Subst}\left (\int \frac {x (a+b x)^3}{1-x} \, dx,x,\tanh ^2(c+d x)\right )}{2 d} \\ & = \frac {\text {Subst}\left (\int \left (-(a+b)^3-\frac {(a+b)^3}{-1+x}-b \left (3 a^2+3 a b+b^2\right ) x-b^2 (3 a+b) x^2-b^3 x^3\right ) \, dx,x,\tanh ^2(c+d x)\right )}{2 d} \\ & = \frac {(a+b)^3 \log (\cosh (c+d x))}{d}-\frac {(a+b)^3 \tanh ^2(c+d x)}{2 d}-\frac {b \left (3 a^2+3 a b+b^2\right ) \tanh ^4(c+d x)}{4 d}-\frac {b^2 (3 a+b) \tanh ^6(c+d x)}{6 d}-\frac {b^3 \tanh ^8(c+d x)}{8 d} \\ \end{align*}
Time = 0.35 (sec) , antiderivative size = 98, normalized size of antiderivative = 0.92 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=\frac {2 (a+b)^3 \log (\cosh (c+d x))-(a+b)^3 \tanh ^2(c+d x)-\frac {1}{2} b \left (3 a^2+3 a b+b^2\right ) \tanh ^4(c+d x)-\frac {1}{3} b^2 (3 a+b) \tanh ^6(c+d x)-\frac {1}{4} b^3 \tanh ^8(c+d x)}{2 d} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(204\) vs. \(2(99)=198\).
Time = 0.14 (sec) , antiderivative size = 205, normalized size of antiderivative = 1.92
method | result | size |
derivativedivides | \(\frac {-\frac {\tanh \left (d x +c \right )^{6} a \,b^{2}}{2}-\frac {3 \tanh \left (d x +c \right )^{4} a^{2} b}{4}-\frac {3 \tanh \left (d x +c \right )^{4} a \,b^{2}}{4}-\frac {3 \tanh \left (d x +c \right )^{2} a^{2} b}{2}-\frac {3 a \,b^{2} \tanh \left (d x +c \right )^{2}}{2}-\frac {\tanh \left (d x +c \right )^{6} b^{3}}{6}-\frac {b^{3} \tanh \left (d x +c \right )^{4}}{4}-\frac {\tanh \left (d x +c \right )^{2} a^{3}}{2}-\frac {b^{3} \tanh \left (d x +c \right )^{2}}{2}-\frac {\tanh \left (d x +c \right )^{8} b^{3}}{8}+\frac {\left (-a^{3}-3 a^{2} b -3 a \,b^{2}-b^{3}\right ) \ln \left (\tanh \left (d x +c \right )+1\right )}{2}-\frac {\left (a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}\right ) \ln \left (\tanh \left (d x +c \right )-1\right )}{2}}{d}\) | \(205\) |
default | \(\frac {-\frac {\tanh \left (d x +c \right )^{6} a \,b^{2}}{2}-\frac {3 \tanh \left (d x +c \right )^{4} a^{2} b}{4}-\frac {3 \tanh \left (d x +c \right )^{4} a \,b^{2}}{4}-\frac {3 \tanh \left (d x +c \right )^{2} a^{2} b}{2}-\frac {3 a \,b^{2} \tanh \left (d x +c \right )^{2}}{2}-\frac {\tanh \left (d x +c \right )^{6} b^{3}}{6}-\frac {b^{3} \tanh \left (d x +c \right )^{4}}{4}-\frac {\tanh \left (d x +c \right )^{2} a^{3}}{2}-\frac {b^{3} \tanh \left (d x +c \right )^{2}}{2}-\frac {\tanh \left (d x +c \right )^{8} b^{3}}{8}+\frac {\left (-a^{3}-3 a^{2} b -3 a \,b^{2}-b^{3}\right ) \ln \left (\tanh \left (d x +c \right )+1\right )}{2}-\frac {\left (a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}\right ) \ln \left (\tanh \left (d x +c \right )-1\right )}{2}}{d}\) | \(205\) |
parts | \(\frac {a^{3} \left (-\frac {\tanh \left (d x +c \right )^{2}}{2}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2}-\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2}\right )}{d}+\frac {b^{3} \left (-\frac {\tanh \left (d x +c \right )^{8}}{8}-\frac {\tanh \left (d x +c \right )^{6}}{6}-\frac {\tanh \left (d x +c \right )^{4}}{4}-\frac {\tanh \left (d x +c \right )^{2}}{2}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2}-\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2}\right )}{d}+\frac {3 a \,b^{2} \left (-\frac {\tanh \left (d x +c \right )^{6}}{6}-\frac {\tanh \left (d x +c \right )^{4}}{4}-\frac {\tanh \left (d x +c \right )^{2}}{2}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2}-\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2}\right )}{d}+\frac {3 a^{2} b \left (-\frac {\tanh \left (d x +c \right )^{4}}{4}-\frac {\tanh \left (d x +c \right )^{2}}{2}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2}-\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2}\right )}{d}\) | \(226\) |
parallelrisch | \(-\frac {3 \tanh \left (d x +c \right )^{8} b^{3}+12 \tanh \left (d x +c \right )^{6} a \,b^{2}+4 \tanh \left (d x +c \right )^{6} b^{3}+18 \tanh \left (d x +c \right )^{4} a^{2} b +18 \tanh \left (d x +c \right )^{4} a \,b^{2}+6 b^{3} \tanh \left (d x +c \right )^{4}+24 a^{3} d x +72 a^{2} b d x +72 a \,b^{2} d x +24 b^{3} d x +12 \tanh \left (d x +c \right )^{2} a^{3}+36 \tanh \left (d x +c \right )^{2} a^{2} b +36 a \,b^{2} \tanh \left (d x +c \right )^{2}+12 b^{3} \tanh \left (d x +c \right )^{2}+24 \ln \left (1-\tanh \left (d x +c \right )\right ) a^{3}+72 \ln \left (1-\tanh \left (d x +c \right )\right ) a^{2} b +72 \ln \left (1-\tanh \left (d x +c \right )\right ) a \,b^{2}+24 \ln \left (1-\tanh \left (d x +c \right )\right ) b^{3}}{24 d}\) | \(238\) |
risch | \(-a^{3} x -3 b \,a^{2} x -3 a \,b^{2} x -b^{3} x -\frac {2 a^{3} c}{d}-\frac {6 b c \,a^{2}}{d}-\frac {6 a \,b^{2} c}{d}-\frac {2 b^{3} c}{d}+\frac {2 \,{\mathrm e}^{2 d x +2 c} \left (27 a \,b^{2}+3 a^{3}+18 a^{2} b \,{\mathrm e}^{12 d x +12 c}+108 a \,b^{2} {\mathrm e}^{10 d x +10 c}+90 a^{2} b \,{\mathrm e}^{10 d x +10 c}+27 a \,b^{2} {\mathrm e}^{12 d x +12 c}+100 \,{\mathrm e}^{4 d x +4 c} b^{3}+18 a^{2} b +108 \,{\mathrm e}^{2 d x +2 c} a \,b^{2}+90 a^{2} b \,{\mathrm e}^{2 d x +2 c}+237 a \,b^{2} {\mathrm e}^{4 d x +4 c}+198 a^{2} b \,{\mathrm e}^{4 d x +4 c}+252 a^{2} b \,{\mathrm e}^{6 d x +6 c}+312 a \,b^{2} {\mathrm e}^{6 d x +6 c}+12 b^{3}+198 a^{2} b \,{\mathrm e}^{8 d x +8 c}+237 a \,b^{2} {\mathrm e}^{8 d x +8 c}+12 b^{3} {\mathrm e}^{12 d x +12 c}+60 a^{3} {\mathrm e}^{6 d x +6 c}+104 \,{\mathrm e}^{6 d x +6 c} b^{3}+45 a^{3} {\mathrm e}^{4 d x +4 c}+18 a^{3} {\mathrm e}^{2 d x +2 c}+36 \,{\mathrm e}^{2 d x +2 c} b^{3}+36 b^{3} {\mathrm e}^{10 d x +10 c}+100 b^{3} {\mathrm e}^{8 d x +8 c}+18 a^{3} {\mathrm e}^{10 d x +10 c}+3 a^{3} {\mathrm e}^{12 d x +12 c}+45 a^{3} {\mathrm e}^{8 d x +8 c}\right )}{3 d \left ({\mathrm e}^{2 d x +2 c}+1\right )^{8}}+\frac {\ln \left ({\mathrm e}^{2 d x +2 c}+1\right ) a^{3}}{d}+\frac {3 b \ln \left ({\mathrm e}^{2 d x +2 c}+1\right ) a^{2}}{d}+\frac {3 \ln \left ({\mathrm e}^{2 d x +2 c}+1\right ) a \,b^{2}}{d}+\frac {b^{3} \ln \left ({\mathrm e}^{2 d x +2 c}+1\right )}{d}\) | \(544\) |
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Leaf count of result is larger than twice the leaf count of optimal. 7502 vs. \(2 (99) = 198\).
Time = 0.34 (sec) , antiderivative size = 7502, normalized size of antiderivative = 70.11 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=\text {Too large to display} \]
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Leaf count of result is larger than twice the leaf count of optimal. 279 vs. \(2 (94) = 188\).
Time = 0.27 (sec) , antiderivative size = 279, normalized size of antiderivative = 2.61 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=\begin {cases} a^{3} x - \frac {a^{3} \log {\left (\tanh {\left (c + d x \right )} + 1 \right )}}{d} - \frac {a^{3} \tanh ^{2}{\left (c + d x \right )}}{2 d} + 3 a^{2} b x - \frac {3 a^{2} b \log {\left (\tanh {\left (c + d x \right )} + 1 \right )}}{d} - \frac {3 a^{2} b \tanh ^{4}{\left (c + d x \right )}}{4 d} - \frac {3 a^{2} b \tanh ^{2}{\left (c + d x \right )}}{2 d} + 3 a b^{2} x - \frac {3 a b^{2} \log {\left (\tanh {\left (c + d x \right )} + 1 \right )}}{d} - \frac {a b^{2} \tanh ^{6}{\left (c + d x \right )}}{2 d} - \frac {3 a b^{2} \tanh ^{4}{\left (c + d x \right )}}{4 d} - \frac {3 a b^{2} \tanh ^{2}{\left (c + d x \right )}}{2 d} + b^{3} x - \frac {b^{3} \log {\left (\tanh {\left (c + d x \right )} + 1 \right )}}{d} - \frac {b^{3} \tanh ^{8}{\left (c + d x \right )}}{8 d} - \frac {b^{3} \tanh ^{6}{\left (c + d x \right )}}{6 d} - \frac {b^{3} \tanh ^{4}{\left (c + d x \right )}}{4 d} - \frac {b^{3} \tanh ^{2}{\left (c + d x \right )}}{2 d} & \text {for}\: d \neq 0 \\x \left (a + b \tanh ^{2}{\left (c \right )}\right )^{3} \tanh ^{3}{\left (c \right )} & \text {otherwise} \end {cases} \]
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Leaf count of result is larger than twice the leaf count of optimal. 540 vs. \(2 (99) = 198\).
Time = 0.29 (sec) , antiderivative size = 540, normalized size of antiderivative = 5.05 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=a b^{2} {\left (3 \, x + \frac {3 \, c}{d} + \frac {3 \, \log \left (e^{\left (-2 \, d x - 2 \, c\right )} + 1\right )}{d} + \frac {2 \, {\left (9 \, e^{\left (-2 \, d x - 2 \, c\right )} + 18 \, e^{\left (-4 \, d x - 4 \, c\right )} + 34 \, e^{\left (-6 \, d x - 6 \, c\right )} + 18 \, e^{\left (-8 \, d x - 8 \, c\right )} + 9 \, e^{\left (-10 \, d x - 10 \, c\right )}\right )}}{d {\left (6 \, e^{\left (-2 \, d x - 2 \, c\right )} + 15 \, e^{\left (-4 \, d x - 4 \, c\right )} + 20 \, e^{\left (-6 \, d x - 6 \, c\right )} + 15 \, e^{\left (-8 \, d x - 8 \, c\right )} + 6 \, e^{\left (-10 \, d x - 10 \, c\right )} + e^{\left (-12 \, d x - 12 \, c\right )} + 1\right )}}\right )} + \frac {1}{3} \, b^{3} {\left (3 \, x + \frac {3 \, c}{d} + \frac {3 \, \log \left (e^{\left (-2 \, d x - 2 \, c\right )} + 1\right )}{d} + \frac {8 \, {\left (3 \, e^{\left (-2 \, d x - 2 \, c\right )} + 9 \, e^{\left (-4 \, d x - 4 \, c\right )} + 25 \, e^{\left (-6 \, d x - 6 \, c\right )} + 26 \, e^{\left (-8 \, d x - 8 \, c\right )} + 25 \, e^{\left (-10 \, d x - 10 \, c\right )} + 9 \, e^{\left (-12 \, d x - 12 \, c\right )} + 3 \, e^{\left (-14 \, d x - 14 \, c\right )}\right )}}{d {\left (8 \, e^{\left (-2 \, d x - 2 \, c\right )} + 28 \, e^{\left (-4 \, d x - 4 \, c\right )} + 56 \, e^{\left (-6 \, d x - 6 \, c\right )} + 70 \, e^{\left (-8 \, d x - 8 \, c\right )} + 56 \, e^{\left (-10 \, d x - 10 \, c\right )} + 28 \, e^{\left (-12 \, d x - 12 \, c\right )} + 8 \, e^{\left (-14 \, d x - 14 \, c\right )} + e^{\left (-16 \, d x - 16 \, c\right )} + 1\right )}}\right )} + 3 \, a^{2} b {\left (x + \frac {c}{d} + \frac {\log \left (e^{\left (-2 \, d x - 2 \, c\right )} + 1\right )}{d} + \frac {4 \, {\left (e^{\left (-2 \, d x - 2 \, c\right )} + e^{\left (-4 \, d x - 4 \, c\right )} + e^{\left (-6 \, d x - 6 \, c\right )}\right )}}{d {\left (4 \, e^{\left (-2 \, d x - 2 \, c\right )} + 6 \, e^{\left (-4 \, d x - 4 \, c\right )} + 4 \, e^{\left (-6 \, d x - 6 \, c\right )} + e^{\left (-8 \, d x - 8 \, c\right )} + 1\right )}}\right )} + a^{3} {\left (x + \frac {c}{d} + \frac {\log \left (e^{\left (-2 \, d x - 2 \, c\right )} + 1\right )}{d} + \frac {2 \, e^{\left (-2 \, d x - 2 \, c\right )}}{d {\left (2 \, e^{\left (-2 \, d x - 2 \, c\right )} + e^{\left (-4 \, d x - 4 \, c\right )} + 1\right )}}\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 309 vs. \(2 (99) = 198\).
Time = 0.46 (sec) , antiderivative size = 309, normalized size of antiderivative = 2.89 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=-\frac {3 \, {\left (a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}\right )} {\left (d x + c\right )} - 3 \, {\left (a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}\right )} \log \left (e^{\left (2 \, d x + 2 \, c\right )} + 1\right ) - \frac {2 \, {\left (3 \, {\left (a^{3} + 6 \, a^{2} b + 9 \, a b^{2} + 4 \, b^{3}\right )} e^{\left (14 \, d x + 14 \, c\right )} + 18 \, {\left (a^{3} + 5 \, a^{2} b + 6 \, a b^{2} + 2 \, b^{3}\right )} e^{\left (12 \, d x + 12 \, c\right )} + {\left (45 \, a^{3} + 198 \, a^{2} b + 237 \, a b^{2} + 100 \, b^{3}\right )} e^{\left (10 \, d x + 10 \, c\right )} + 4 \, {\left (15 \, a^{3} + 63 \, a^{2} b + 78 \, a b^{2} + 26 \, b^{3}\right )} e^{\left (8 \, d x + 8 \, c\right )} + {\left (45 \, a^{3} + 198 \, a^{2} b + 237 \, a b^{2} + 100 \, b^{3}\right )} e^{\left (6 \, d x + 6 \, c\right )} + 18 \, {\left (a^{3} + 5 \, a^{2} b + 6 \, a b^{2} + 2 \, b^{3}\right )} e^{\left (4 \, d x + 4 \, c\right )} + 3 \, {\left (a^{3} + 6 \, a^{2} b + 9 \, a b^{2} + 4 \, b^{3}\right )} e^{\left (2 \, d x + 2 \, c\right )}\right )}}{{\left (e^{\left (2 \, d x + 2 \, c\right )} + 1\right )}^{8}}}{3 \, d} \]
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Time = 1.88 (sec) , antiderivative size = 155, normalized size of antiderivative = 1.45 \[ \int \tanh ^3(c+d x) \left (a+b \tanh ^2(c+d x)\right )^3 \, dx=x\,\left (a^3+3\,a^2\,b+3\,a\,b^2+b^3\right )-\frac {{\mathrm {tanh}\left (c+d\,x\right )}^4\,\left (3\,a^2\,b+3\,a\,b^2+b^3\right )}{4\,d}-\frac {\ln \left (\mathrm {tanh}\left (c+d\,x\right )+1\right )\,\left (a^3+3\,a^2\,b+3\,a\,b^2+b^3\right )}{d}-\frac {{\mathrm {tanh}\left (c+d\,x\right )}^6\,\left (b^3+3\,a\,b^2\right )}{6\,d}-\frac {b^3\,{\mathrm {tanh}\left (c+d\,x\right )}^8}{8\,d}-\frac {{\mathrm {tanh}\left (c+d\,x\right )}^2\,\left (a^3+3\,a^2\,b+3\,a\,b^2+b^3\right )}{2\,d} \]
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