Integrand size = 20, antiderivative size = 45 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=-\frac {e^{a c+b c x}}{b c}+\frac {e^{a c+b c x} \coth ^{-1}(\coth (c (a+b x)))}{b c} \]
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Time = 0.04 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {2225, 6411} \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {e^{a c+b c x} \coth ^{-1}(\coth (c (a+b x)))}{b c}-\frac {e^{a c+b c x}}{b c} \]
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Rule 2225
Rule 6411
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int e^x \coth ^{-1}(\coth (x)) \, dx,x,a c+b c x\right )}{b c} \\ & = \frac {e^{a c+b c x} \coth ^{-1}(\coth (c (a+b x)))}{b c}-\frac {\text {Subst}\left (\int e^x \, dx,x,a c+b c x\right )}{b c} \\ & = -\frac {e^{a c+b c x}}{b c}+\frac {e^{a c+b c x} \coth ^{-1}(\coth (c (a+b x)))}{b c} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.02 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {e^{c (a+b x)} \left (-1+\coth ^{-1}\left (\frac {1+e^{2 c (a+b x)}}{-1+e^{2 c (a+b x)}}\right )\right )}{b c} \]
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Time = 0.24 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.64
method | result | size |
parallelrisch | \(\frac {{\mathrm e}^{c \left (b x +a \right )} \left (\operatorname {arccoth}\left (\frac {1}{\tanh \left (c \left (b x +a \right )\right )}\right )-1\right )}{b c}\) | \(29\) |
default | \(\frac {{\mathrm e}^{b c x +a c} \left (b c x +a c \right )-{\mathrm e}^{b c x +a c}+{\mathrm e}^{b c x +a c} \left (\operatorname {arccoth}\left (\coth \left (b c x +a c \right )\right )-b c x -a c \right )}{b c}\) | \(68\) |
risch | \(\frac {{\mathrm e}^{c \left (b x +a \right )} \ln \left ({\mathrm e}^{c \left (b x +a \right )}\right )}{b c}-\frac {i \left (\pi \operatorname {csgn}\left (i {\mathrm e}^{c \left (b x +a \right )}\right )^{2} \operatorname {csgn}\left (i {\mathrm e}^{2 c \left (b x +a \right )}\right )-2 \pi \,\operatorname {csgn}\left (i {\mathrm e}^{c \left (b x +a \right )}\right ) \operatorname {csgn}\left (i {\mathrm e}^{2 c \left (b x +a \right )}\right )^{2}+\pi \operatorname {csgn}\left (i {\mathrm e}^{2 c \left (b x +a \right )}\right )^{3}+\pi \,\operatorname {csgn}\left (i {\mathrm e}^{2 c \left (b x +a \right )}\right ) \operatorname {csgn}\left (\frac {i}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 c \left (b x +a \right )}}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right )-\pi \,\operatorname {csgn}\left (i {\mathrm e}^{2 c \left (b x +a \right )}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 c \left (b x +a \right )}}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right )^{2}-\pi \,\operatorname {csgn}\left (\frac {i}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 c \left (b x +a \right )}}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right )^{2}+\pi \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 c \left (b x +a \right )}}{{\mathrm e}^{2 c \left (b x +a \right )}-1}\right )^{3}-4 i\right ) {\mathrm e}^{c \left (b x +a \right )}}{4 b c}\) | \(302\) |
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Time = 0.25 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.56 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {{\left (b c x + a c - 1\right )} e^{\left (b c x + a c\right )}}{b c} \]
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\[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=e^{a c} \int e^{b c x} \operatorname {acoth}{\left (\coth {\left (a c + b c x \right )} \right )}\, dx \]
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Time = 0.21 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.93 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {a e^{\left (b c x + a c\right )}}{b} + \frac {{\left (b c x e^{\left (a c\right )} - e^{\left (a c\right )}\right )} e^{\left (b c x\right )}}{b c} \]
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Time = 0.26 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.78 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {{\left (b^{2} c^{2} x + a b c^{2} - b c\right )} e^{\left (b c x + a c\right )}}{b^{2} c^{2}} \]
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Time = 4.06 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.62 \[ \int e^{c (a+b x)} \coth ^{-1}(\coth (a c+b c x)) \, dx=\frac {{\mathrm {e}}^{a\,c+b\,c\,x}\,\left (\mathrm {acoth}\left (\mathrm {coth}\left (a\,c+b\,c\,x\right )\right )-1\right )}{b\,c} \]
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