Integrand size = 15, antiderivative size = 60 \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\sqrt {a} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a}}\right )-\sqrt {a-b} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a-b}}\right ) \]
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Time = 0.11 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {3751, 457, 85, 65, 214} \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\sqrt {a} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a}}\right )-\sqrt {a-b} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a-b}}\right ) \]
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Rule 65
Rule 85
Rule 214
Rule 457
Rule 3751
Rubi steps \begin{align*} \text {integral}& = -\text {Subst}\left (\int \frac {\sqrt {a+b x^2}}{x \left (1+x^2\right )} \, dx,x,\cot (x)\right ) \\ & = -\left (\frac {1}{2} \text {Subst}\left (\int \frac {\sqrt {a+b x}}{x (1+x)} \, dx,x,\cot ^2(x)\right )\right ) \\ & = -\left (\frac {1}{2} a \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,\cot ^2(x)\right )\right )-\frac {1}{2} (-a+b) \text {Subst}\left (\int \frac {1}{(1+x) \sqrt {a+b x}} \, dx,x,\cot ^2(x)\right ) \\ & = -\frac {a \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b \cot ^2(x)}\right )}{b}-\frac {(-a+b) \text {Subst}\left (\int \frac {1}{1-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b \cot ^2(x)}\right )}{b} \\ & = \sqrt {a} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a}}\right )-\sqrt {a-b} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a-b}}\right ) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.00 \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\sqrt {a} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a}}\right )-\sqrt {a-b} \text {arctanh}\left (\frac {\sqrt {a+b \cot ^2(x)}}{\sqrt {a-b}}\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. \(193\) vs. \(2(48)=96\).
Time = 7.15 (sec) , antiderivative size = 194, normalized size of antiderivative = 3.23
method | result | size |
default | \(\frac {\sqrt {4}\, \sin \left (x \right ) \left (\sqrt {a}\, \operatorname {arctanh}\left (\frac {\sqrt {-\frac {a \cos \left (x \right )^{2}-\cos \left (x \right )^{2} b -a}{\left (\cos \left (x \right )+1\right )^{2}}}\, \left (\cot \left (x \right )+\csc \left (x \right )\right )}{\sqrt {a}}\right ) \sqrt {-a +b}+\arctan \left (\frac {\sqrt {-\frac {a \cos \left (x \right )^{2}-\cos \left (x \right )^{2} b -a}{\left (\cos \left (x \right )+1\right )^{2}}}\, \left (\cot \left (x \right )+\csc \left (x \right )\right )}{\sqrt {-a +b}}\right ) a -\arctan \left (\frac {\sqrt {-\frac {a \cos \left (x \right )^{2}-\cos \left (x \right )^{2} b -a}{\left (\cos \left (x \right )+1\right )^{2}}}\, \left (\cot \left (x \right )+\csc \left (x \right )\right )}{\sqrt {-a +b}}\right ) b \right ) \sqrt {a +b \cot \left (x \right )^{2}}}{2 \sqrt {-a +b}\, \left (\cos \left (x \right )+1\right ) \sqrt {-\frac {a \cos \left (x \right )^{2}-\cos \left (x \right )^{2} b -a}{\left (\cos \left (x \right )+1\right )^{2}}}}\) | \(194\) |
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none
Time = 0.29 (sec) , antiderivative size = 351, normalized size of antiderivative = 5.85 \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\left [\frac {1}{2} \, \sqrt {a} \log \left (2 \, a \tan \left (x\right )^{2} + 2 \, \sqrt {a} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}} \tan \left (x\right )^{2} + b\right ) + \frac {1}{2} \, \sqrt {a - b} \log \left (\frac {{\left (2 \, a - b\right )} \tan \left (x\right )^{2} - 2 \, \sqrt {a - b} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}} \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2} + 1}\right ), -\sqrt {-a + b} \arctan \left (-\frac {\sqrt {-a + b} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}}}{a - b}\right ) + \frac {1}{2} \, \sqrt {a} \log \left (2 \, a \tan \left (x\right )^{2} + 2 \, \sqrt {a} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}} \tan \left (x\right )^{2} + b\right ), -\sqrt {-a} \arctan \left (\frac {\sqrt {-a} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}}}{a}\right ) + \frac {1}{2} \, \sqrt {a - b} \log \left (\frac {{\left (2 \, a - b\right )} \tan \left (x\right )^{2} - 2 \, \sqrt {a - b} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}} \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2} + 1}\right ), -\sqrt {-a} \arctan \left (\frac {\sqrt {-a} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}}}{a}\right ) - \sqrt {-a + b} \arctan \left (-\frac {\sqrt {-a + b} \sqrt {\frac {a \tan \left (x\right )^{2} + b}{\tan \left (x\right )^{2}}}}{a - b}\right )\right ] \]
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\[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\int \sqrt {a + b \cot ^{2}{\left (x \right )}} \tan {\left (x \right )}\, dx \]
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\[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\int { \sqrt {b \cot \left (x\right )^{2} + a} \tan \left (x\right ) \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 187 vs. \(2 (48) = 96\).
Time = 0.33 (sec) , antiderivative size = 187, normalized size of antiderivative = 3.12 \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\frac {1}{2} \, {\left (\frac {2 \, \sqrt {a - b} a \arctan \left (\frac {{\left (\sqrt {a - b} \sin \left (x\right ) - \sqrt {a \sin \left (x\right )^{2} - b \sin \left (x\right )^{2} + b}\right )}^{2} - 2 \, a + b}{2 \, \sqrt {-a^{2} + a b}}\right )}{\sqrt {-a^{2} + a b}} + \sqrt {a - b} \log \left ({\left (\sqrt {a - b} \sin \left (x\right ) - \sqrt {a \sin \left (x\right )^{2} - b \sin \left (x\right )^{2} + b}\right )}^{2}\right )\right )} \mathrm {sgn}\left (\sin \left (x\right )\right ) - \frac {{\left (2 \, \sqrt {a - b} a \arctan \left (-\frac {a - b}{\sqrt {-a^{2} + a b}}\right ) + \sqrt {-a^{2} + a b} \sqrt {a - b} \log \left (b\right )\right )} \mathrm {sgn}\left (\sin \left (x\right )\right )}{2 \, \sqrt {-a^{2} + a b}} \]
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Time = 13.78 (sec) , antiderivative size = 69, normalized size of antiderivative = 1.15 \[ \int \sqrt {a+b \cot ^2(x)} \tan (x) \, dx=\mathrm {atanh}\left (\frac {2\,a\,b^3\,\sqrt {a-b}\,\sqrt {a+\frac {b}{{\mathrm {tan}\left (x\right )}^2}}}{2\,a\,b^4-2\,a^2\,b^3}\right )\,\sqrt {a-b}+\sqrt {a}\,\mathrm {atanh}\left (\frac {\sqrt {a+\frac {b}{{\mathrm {tan}\left (x\right )}^2}}}{\sqrt {a}}\right ) \]
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