Integrand size = 15, antiderivative size = 56 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\frac {2 A \text {arctanh}\left (\frac {\sqrt {a-b} \tanh \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (a+b \cosh (x))}{b} \]
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Time = 0.10 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {4486, 2738, 214, 2747, 31} \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\frac {2 A \text {arctanh}\left (\frac {\sqrt {a-b} \tanh \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (a+b \cosh (x))}{b} \]
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Rule 31
Rule 214
Rule 2738
Rule 2747
Rule 4486
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {A}{a+b \cosh (x)}+\frac {B \sinh (x)}{a+b \cosh (x)}\right ) \, dx \\ & = A \int \frac {1}{a+b \cosh (x)} \, dx+B \int \frac {\sinh (x)}{a+b \cosh (x)} \, dx \\ & = (2 A) \text {Subst}\left (\int \frac {1}{a+b-(a-b) x^2} \, dx,x,\tanh \left (\frac {x}{2}\right )\right )+\frac {B \text {Subst}\left (\int \frac {1}{a+x} \, dx,x,b \cosh (x)\right )}{b} \\ & = \frac {2 A \text {arctanh}\left (\frac {\sqrt {a-b} \tanh \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (a+b \cosh (x))}{b} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 55, normalized size of antiderivative = 0.98 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=-\frac {2 A \arctan \left (\frac {(a-b) \tanh \left (\frac {x}{2}\right )}{\sqrt {-a^2+b^2}}\right )}{\sqrt {-a^2+b^2}}+\frac {B \log (a+b \cosh (x))}{b} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(111\) vs. \(2(46)=92\).
Time = 0.21 (sec) , antiderivative size = 112, normalized size of antiderivative = 2.00
method | result | size |
default | \(-\frac {B \ln \left (\tanh \left (\frac {x}{2}\right )-1\right )}{b}+\frac {\frac {2 \left (B a -B b \right ) \ln \left (\tanh \left (\frac {x}{2}\right )^{2} a -\tanh \left (\frac {x}{2}\right )^{2} b -a -b \right )}{2 a -2 b}+\frac {2 b A \,\operatorname {arctanh}\left (\frac {\left (a -b \right ) \tanh \left (\frac {x}{2}\right )}{\sqrt {\left (a +b \right ) \left (a -b \right )}}\right )}{\sqrt {\left (a +b \right ) \left (a -b \right )}}}{b}-\frac {B \ln \left (\tanh \left (\frac {x}{2}\right )+1\right )}{b}\) | \(112\) |
risch | \(\frac {B x}{b}+\frac {2 x B \,a^{2} b}{-a^{2} b^{2}+b^{4}}-\frac {2 x B \,b^{3}}{-a^{2} b^{2}+b^{4}}+\frac {\ln \left ({\mathrm e}^{x}+\frac {b A a -\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) a^{2} B}{\left (a^{2}-b^{2}\right ) b}-\frac {b \ln \left ({\mathrm e}^{x}+\frac {b A a -\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) B}{a^{2}-b^{2}}+\frac {\ln \left ({\mathrm e}^{x}+\frac {b A a -\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) \sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{\left (a^{2}-b^{2}\right ) b}+\frac {\ln \left ({\mathrm e}^{x}+\frac {b A a +\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) a^{2} B}{\left (a^{2}-b^{2}\right ) b}-\frac {b \ln \left ({\mathrm e}^{x}+\frac {b A a +\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) B}{a^{2}-b^{2}}-\frac {\ln \left ({\mathrm e}^{x}+\frac {b A a +\sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{b^{2} A}\right ) \sqrt {A^{2} a^{2} b^{2}-A^{2} b^{4}}}{\left (a^{2}-b^{2}\right ) b}\) | \(420\) |
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Leaf count of result is larger than twice the leaf count of optimal. 112 vs. \(2 (46) = 92\).
Time = 0.27 (sec) , antiderivative size = 291, normalized size of antiderivative = 5.20 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\left [\frac {\sqrt {a^{2} - b^{2}} A b \log \left (\frac {b^{2} \cosh \left (x\right )^{2} + b^{2} \sinh \left (x\right )^{2} + 2 \, a b \cosh \left (x\right ) + 2 \, a^{2} - b^{2} + 2 \, {\left (b^{2} \cosh \left (x\right ) + a b\right )} \sinh \left (x\right ) - 2 \, \sqrt {a^{2} - b^{2}} {\left (b \cosh \left (x\right ) + b \sinh \left (x\right ) + a\right )}}{b \cosh \left (x\right )^{2} + b \sinh \left (x\right )^{2} + 2 \, a \cosh \left (x\right ) + 2 \, {\left (b \cosh \left (x\right ) + a\right )} \sinh \left (x\right ) + b}\right ) - {\left (B a^{2} - B b^{2}\right )} x + {\left (B a^{2} - B b^{2}\right )} \log \left (\frac {2 \, {\left (b \cosh \left (x\right ) + a\right )}}{\cosh \left (x\right ) - \sinh \left (x\right )}\right )}{a^{2} b - b^{3}}, -\frac {2 \, \sqrt {-a^{2} + b^{2}} A b \arctan \left (-\frac {\sqrt {-a^{2} + b^{2}} {\left (b \cosh \left (x\right ) + b \sinh \left (x\right ) + a\right )}}{a^{2} - b^{2}}\right ) + {\left (B a^{2} - B b^{2}\right )} x - {\left (B a^{2} - B b^{2}\right )} \log \left (\frac {2 \, {\left (b \cosh \left (x\right ) + a\right )}}{\cosh \left (x\right ) - \sinh \left (x\right )}\right )}{a^{2} b - b^{3}}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 741 vs. \(2 (48) = 96\).
Time = 12.98 (sec) , antiderivative size = 741, normalized size of antiderivative = 13.23 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\begin {cases} \tilde {\infty } \left (2 A \operatorname {atan}{\left (\tanh {\left (\frac {x}{2} \right )} \right )} + B x - 2 B \log {\left (\tanh {\left (\frac {x}{2} \right )} + 1 \right )} + B \log {\left (\tanh ^{2}{\left (\frac {x}{2} \right )} + 1 \right )}\right ) & \text {for}\: a = 0 \wedge b = 0 \\\frac {A \tanh {\left (\frac {x}{2} \right )}}{b} + \frac {B x}{b} - \frac {2 B \log {\left (\tanh {\left (\frac {x}{2} \right )} + 1 \right )}}{b} & \text {for}\: a = b \\- \frac {A}{b \tanh {\left (\frac {x}{2} \right )}} + \frac {B x}{b} - \frac {2 B \log {\left (\tanh {\left (\frac {x}{2} \right )} + 1 \right )}}{b} + \frac {2 B \log {\left (\tanh {\left (\frac {x}{2} \right )} \right )}}{b} & \text {for}\: a = - b \\\frac {A x + B \cosh {\left (x \right )}}{a} & \text {for}\: b = 0 \\- \frac {A b \log {\left (- \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} + \frac {A b \log {\left (\sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} + \frac {B a x \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} + \frac {B a \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (- \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} + \frac {B a \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (\sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} - \frac {2 B a \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (\tanh {\left (\frac {x}{2} \right )} + 1 \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} - \frac {B b x \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} - \frac {B b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (- \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} - \frac {B b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (\sqrt {\frac {a}{a - b} + \frac {b}{a - b}} + \tanh {\left (\frac {x}{2} \right )} \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} + \frac {2 B b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} \log {\left (\tanh {\left (\frac {x}{2} \right )} + 1 \right )}}{a b \sqrt {\frac {a}{a - b} + \frac {b}{a - b}} - b^{2} \sqrt {\frac {a}{a - b} + \frac {b}{a - b}}} & \text {otherwise} \end {cases} \]
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Exception generated. \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\text {Exception raised: ValueError} \]
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none
Time = 0.27 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.07 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\frac {2 \, A \arctan \left (\frac {b e^{x} + a}{\sqrt {-a^{2} + b^{2}}}\right )}{\sqrt {-a^{2} + b^{2}}} - \frac {B x}{b} + \frac {B \log \left (b e^{\left (2 \, x\right )} + 2 \, a e^{x} + b\right )}{b} \]
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Time = 3.86 (sec) , antiderivative size = 197, normalized size of antiderivative = 3.52 \[ \int \frac {A+B \sinh (x)}{a+b \cosh (x)} \, dx=\frac {2\,\mathrm {atan}\left (\frac {A^2\,b^2\,{\mathrm {e}}^x\,\sqrt {b^2-a^2}}{\left (A\,b^3-A\,a^2\,b\right )\,\sqrt {A^2}}+\frac {A^2\,a\,b\,\sqrt {b^2-a^2}}{\left (A\,b^3-A\,a^2\,b\right )\,\sqrt {A^2}}\right )\,\sqrt {A^2}}{\sqrt {b^2-a^2}}-\frac {B\,x}{b}+\frac {B\,b^3\,\ln \left (4\,A^2\,b+8\,A^2\,a\,{\mathrm {e}}^x+4\,A^2\,b\,{\mathrm {e}}^{2\,x}\right )}{b^4-a^2\,b^2}-\frac {B\,a^2\,b\,\ln \left (4\,A^2\,b+8\,A^2\,a\,{\mathrm {e}}^x+4\,A^2\,b\,{\mathrm {e}}^{2\,x}\right )}{b^4-a^2\,b^2} \]
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