Integrand size = 11, antiderivative size = 40 \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=-\frac {2 \text {arctanh}\left (\frac {a+b \tan \left (\frac {x}{2}\right )}{\sqrt {a^2-b^2}}\right )}{\sqrt {a^2-b^2}} \]
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Time = 0.07 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.364, Rules used = {3916, 2739, 632, 212} \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=-\frac {2 \text {arctanh}\left (\frac {a+b \tan \left (\frac {x}{2}\right )}{\sqrt {a^2-b^2}}\right )}{\sqrt {a^2-b^2}} \]
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Rule 212
Rule 632
Rule 2739
Rule 3916
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {1}{1+\frac {a \sin (x)}{b}} \, dx}{b} \\ & = \frac {2 \text {Subst}\left (\int \frac {1}{1+\frac {2 a x}{b}+x^2} \, dx,x,\tan \left (\frac {x}{2}\right )\right )}{b} \\ & = -\frac {4 \text {Subst}\left (\int \frac {1}{-4 \left (1-\frac {a^2}{b^2}\right )-x^2} \, dx,x,\frac {2 a}{b}+2 \tan \left (\frac {x}{2}\right )\right )}{b} \\ & = -\frac {2 \text {arctanh}\left (\frac {b \left (\frac {a}{b}+\tan \left (\frac {x}{2}\right )\right )}{\sqrt {a^2-b^2}}\right )}{\sqrt {a^2-b^2}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.00 \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=\frac {2 \arctan \left (\frac {a+b \tan \left (\frac {x}{2}\right )}{\sqrt {-a^2+b^2}}\right )}{\sqrt {-a^2+b^2}} \]
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Time = 0.18 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.98
method | result | size |
default | \(\frac {2 \arctan \left (\frac {2 b \tan \left (\frac {x}{2}\right )+2 a}{2 \sqrt {-a^{2}+b^{2}}}\right )}{\sqrt {-a^{2}+b^{2}}}\) | \(39\) |
risch | \(-\frac {i \ln \left ({\mathrm e}^{i x}+\frac {i \left (\sqrt {-a^{2}+b^{2}}\, b +a^{2}-b^{2}\right )}{a \sqrt {-a^{2}+b^{2}}}\right )}{\sqrt {-a^{2}+b^{2}}}+\frac {i \ln \left ({\mathrm e}^{i x}+\frac {i \left (\sqrt {-a^{2}+b^{2}}\, b -a^{2}+b^{2}\right )}{a \sqrt {-a^{2}+b^{2}}}\right )}{\sqrt {-a^{2}+b^{2}}}\) | \(122\) |
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Time = 0.27 (sec) , antiderivative size = 154, normalized size of antiderivative = 3.85 \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=\left [\frac {\log \left (-\frac {{\left (a^{2} - 2 \, b^{2}\right )} \cos \left (x\right )^{2} + 2 \, a b \sin \left (x\right ) + a^{2} + b^{2} - 2 \, {\left (b \cos \left (x\right ) \sin \left (x\right ) + a \cos \left (x\right )\right )} \sqrt {a^{2} - b^{2}}}{a^{2} \cos \left (x\right )^{2} - 2 \, a b \sin \left (x\right ) - a^{2} - b^{2}}\right )}{2 \, \sqrt {a^{2} - b^{2}}}, -\frac {\sqrt {-a^{2} + b^{2}} \arctan \left (-\frac {\sqrt {-a^{2} + b^{2}} {\left (b \sin \left (x\right ) + a\right )}}{{\left (a^{2} - b^{2}\right )} \cos \left (x\right )}\right )}{a^{2} - b^{2}}\right ] \]
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\[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=\int \frac {\csc {\left (x \right )}}{a + b \csc {\left (x \right )}}\, dx \]
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Exception generated. \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=\text {Exception raised: ValueError} \]
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Time = 0.28 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.20 \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=\frac {2 \, {\left (\pi \left \lfloor \frac {x}{2 \, \pi } + \frac {1}{2} \right \rfloor \mathrm {sgn}\left (b\right ) + \arctan \left (\frac {b \tan \left (\frac {1}{2} \, x\right ) + a}{\sqrt {-a^{2} + b^{2}}}\right )\right )}}{\sqrt {-a^{2} + b^{2}}} \]
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Time = 18.13 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.90 \[ \int \frac {\csc (x)}{a+b \csc (x)} \, dx=-\frac {2\,\mathrm {atanh}\left (\frac {a+b\,\mathrm {tan}\left (\frac {x}{2}\right )}{\sqrt {a+b}\,\sqrt {a-b}}\right )}{\sqrt {a+b}\,\sqrt {a-b}} \]
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