Integrand size = 12, antiderivative size = 28 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=-\frac {\arctan \left (\frac {\sqrt {2} \cot (x)}{\sqrt {1-\cot ^2(x)}}\right )}{\sqrt {2}} \]
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Time = 0.03 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {3742, 385, 209} \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=-\frac {\arctan \left (\frac {\sqrt {2} \cot (x)}{\sqrt {1-\cot ^2(x)}}\right )}{\sqrt {2}} \]
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Rule 209
Rule 385
Rule 3742
Rubi steps \begin{align*} \text {integral}& = -\text {Subst}\left (\int \frac {1}{\sqrt {1-x^2} \left (1+x^2\right )} \, dx,x,\cot (x)\right ) \\ & = -\text {Subst}\left (\int \frac {1}{1+2 x^2} \, dx,x,\frac {\cot (x)}{\sqrt {1-\cot ^2(x)}}\right ) \\ & = -\frac {\arctan \left (\frac {\sqrt {2} \cot (x)}{\sqrt {1-\cot ^2(x)}}\right )}{\sqrt {2}} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.93 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=-\frac {\arcsin \left (\frac {\sqrt {2} \cot (x)}{\sqrt {1+\cot ^2(x)}}\right )}{\sqrt {2}} \]
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Time = 0.08 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.11
method | result | size |
derivativedivides | \(\frac {\sqrt {2}\, \arctan \left (\frac {\sqrt {2}\, \sqrt {1-\cot \left (x \right )^{2}}\, \cot \left (x \right )}{-1+\cot \left (x \right )^{2}}\right )}{2}\) | \(31\) |
default | \(\frac {\sqrt {2}\, \arctan \left (\frac {\sqrt {2}\, \sqrt {1-\cot \left (x \right )^{2}}\, \cot \left (x \right )}{-1+\cot \left (x \right )^{2}}\right )}{2}\) | \(31\) |
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Leaf count of result is larger than twice the leaf count of optimal. 56 vs. \(2 (22) = 44\).
Time = 0.31 (sec) , antiderivative size = 56, normalized size of antiderivative = 2.00 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=\frac {1}{4} \, \sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (2 \, \sqrt {2} \cos \left (2 \, x\right ) + \sqrt {2}\right )} \sqrt {\frac {\cos \left (2 \, x\right )}{\cos \left (2 \, x\right ) - 1}} \sin \left (2 \, x\right )}{4 \, {\left (\cos \left (2 \, x\right )^{2} + \cos \left (2 \, x\right )\right )}}\right ) \]
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\[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=\int \frac {1}{\sqrt {1 - \cot ^{2}{\left (x \right )}}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 90 vs. \(2 (22) = 44\).
Time = 0.48 (sec) , antiderivative size = 90, normalized size of antiderivative = 3.21 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=\frac {1}{4} \, \sqrt {2} \arctan \left ({\left (\cos \left (4 \, x\right )^{2} + \sin \left (4 \, x\right )^{2} + 2 \, \cos \left (4 \, x\right ) + 1\right )}^{\frac {1}{4}} \sin \left (\frac {1}{2} \, \arctan \left (\sin \left (4 \, x\right ), \cos \left (4 \, x\right ) + 1\right )\right ) + \sin \left (2 \, x\right ), {\left (\cos \left (4 \, x\right )^{2} + \sin \left (4 \, x\right )^{2} + 2 \, \cos \left (4 \, x\right ) + 1\right )}^{\frac {1}{4}} \cos \left (\frac {1}{2} \, \arctan \left (\sin \left (4 \, x\right ), \cos \left (4 \, x\right ) + 1\right )\right ) + \cos \left (2 \, x\right )\right ) \]
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Result contains complex when optimal does not.
Time = 0.27 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.21 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=-\frac {1}{2} i \, \sqrt {2} \log \left (i \, \sqrt {2} + i\right ) \mathrm {sgn}\left (\sin \left (x\right )\right ) - \frac {\sqrt {2} \arcsin \left (\sqrt {2} \cos \left (x\right )\right )}{2 \, \mathrm {sgn}\left (\sin \left (x\right )\right )} \]
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Time = 13.18 (sec) , antiderivative size = 85, normalized size of antiderivative = 3.04 \[ \int \frac {1}{\sqrt {1-\cot ^2(x)}} \, dx=-\frac {\sqrt {2}\,\ln \left (\frac {\frac {\sqrt {2}\,\left (-1+\mathrm {cot}\left (x\right )\,1{}\mathrm {i}\right )\,1{}\mathrm {i}}{2}-\sqrt {1-{\mathrm {cot}\left (x\right )}^2}\,1{}\mathrm {i}}{\mathrm {cot}\left (x\right )-\mathrm {i}}\right )\,1{}\mathrm {i}}{4}+\frac {\sqrt {2}\,\ln \left (\frac {\frac {\sqrt {2}\,\left (1+\mathrm {cot}\left (x\right )\,1{}\mathrm {i}\right )\,1{}\mathrm {i}}{2}+\sqrt {1-{\mathrm {cot}\left (x\right )}^2}\,1{}\mathrm {i}}{\mathrm {cot}\left (x\right )+1{}\mathrm {i}}\right )\,1{}\mathrm {i}}{4} \]
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