Optimal. Leaf size=226 \[ -\frac{1}{\sqrt{\cot (x)+1}}-\frac{\log \left (\cot (x)-\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{\cot (x)+1}+\sqrt{2}+1\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{\log \left (\cot (x)+\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{\cot (x)+1}+\sqrt{2}+1\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{1}{2} \sqrt{\frac{1}{2} \left (1+\sqrt{2}\right )} \tan ^{-1}\left (\frac{\sqrt{2 \left (1+\sqrt{2}\right )}-2 \sqrt{\cot (x)+1}}{\sqrt{2 \left (\sqrt{2}-1\right )}}\right )-\frac{1}{2} \sqrt{\frac{1}{2} \left (1+\sqrt{2}\right )} \tan ^{-1}\left (\frac{2 \sqrt{\cot (x)+1}+\sqrt{2 \left (1+\sqrt{2}\right )}}{\sqrt{2 \left (\sqrt{2}-1\right )}}\right ) \]
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Rubi [A] time = 0.193162, antiderivative size = 226, normalized size of antiderivative = 1., number of steps used = 13, number of rules used = 10, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.909, Rules used = {3529, 21, 3485, 700, 1127, 1161, 618, 204, 1164, 628} \[ -\frac{1}{\sqrt{\cot (x)+1}}-\frac{\log \left (\cot (x)-\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{\cot (x)+1}+\sqrt{2}+1\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{\log \left (\cot (x)+\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{\cot (x)+1}+\sqrt{2}+1\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{1}{2} \sqrt{\frac{1}{2} \left (1+\sqrt{2}\right )} \tan ^{-1}\left (\frac{\sqrt{2 \left (1+\sqrt{2}\right )}-2 \sqrt{\cot (x)+1}}{\sqrt{2 \left (\sqrt{2}-1\right )}}\right )-\frac{1}{2} \sqrt{\frac{1}{2} \left (1+\sqrt{2}\right )} \tan ^{-1}\left (\frac{2 \sqrt{\cot (x)+1}+\sqrt{2 \left (1+\sqrt{2}\right )}}{\sqrt{2 \left (\sqrt{2}-1\right )}}\right ) \]
Antiderivative was successfully verified.
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Rule 3529
Rule 21
Rule 3485
Rule 700
Rule 1127
Rule 1161
Rule 618
Rule 204
Rule 1164
Rule 628
Rubi steps
\begin{align*} \int \frac{\cot (x)}{(1+\cot (x))^{3/2}} \, dx &=-\frac{1}{\sqrt{1+\cot (x)}}-\frac{1}{2} \int \frac{-1-\cot (x)}{\sqrt{1+\cot (x)}} \, dx\\ &=-\frac{1}{\sqrt{1+\cot (x)}}+\frac{1}{2} \int \sqrt{1+\cot (x)} \, dx\\ &=-\frac{1}{\sqrt{1+\cot (x)}}-\frac{1}{2} \operatorname{Subst}\left (\int \frac{\sqrt{1+x}}{1+x^2} \, dx,x,\cot (x)\right )\\ &=-\frac{1}{\sqrt{1+\cot (x)}}-\operatorname{Subst}\left (\int \frac{x^2}{2-2 x^2+x^4} \, dx,x,\sqrt{1+\cot (x)}\right )\\ &=-\frac{1}{\sqrt{1+\cot (x)}}+\frac{1}{2} \operatorname{Subst}\left (\int \frac{\sqrt{2}-x^2}{2-2 x^2+x^4} \, dx,x,\sqrt{1+\cot (x)}\right )-\frac{1}{2} \operatorname{Subst}\left (\int \frac{\sqrt{2}+x^2}{2-2 x^2+x^4} \, dx,x,\sqrt{1+\cot (x)}\right )\\ &=-\frac{1}{\sqrt{1+\cot (x)}}-\frac{1}{4} \operatorname{Subst}\left (\int \frac{1}{\sqrt{2}-\sqrt{2 \left (1+\sqrt{2}\right )} x+x^2} \, dx,x,\sqrt{1+\cot (x)}\right )-\frac{1}{4} \operatorname{Subst}\left (\int \frac{1}{\sqrt{2}+\sqrt{2 \left (1+\sqrt{2}\right )} x+x^2} \, dx,x,\sqrt{1+\cot (x)}\right )-\frac{\operatorname{Subst}\left (\int \frac{\sqrt{2 \left (1+\sqrt{2}\right )}+2 x}{-\sqrt{2}-\sqrt{2 \left (1+\sqrt{2}\right )} x-x^2} \, dx,x,\sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}-\frac{\operatorname{Subst}\left (\int \frac{\sqrt{2 \left (1+\sqrt{2}\right )}-2 x}{-\sqrt{2}+\sqrt{2 \left (1+\sqrt{2}\right )} x-x^2} \, dx,x,\sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}\\ &=-\frac{1}{\sqrt{1+\cot (x)}}-\frac{\log \left (1+\sqrt{2}+\cot (x)-\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{\log \left (1+\sqrt{2}+\cot (x)+\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{2 \left (1-\sqrt{2}\right )-x^2} \, dx,x,-\sqrt{2 \left (1+\sqrt{2}\right )}+2 \sqrt{1+\cot (x)}\right )+\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{2 \left (1-\sqrt{2}\right )-x^2} \, dx,x,\sqrt{2 \left (1+\sqrt{2}\right )}+2 \sqrt{1+\cot (x)}\right )\\ &=\frac{\tan ^{-1}\left (\frac{\sqrt{2 \left (1+\sqrt{2}\right )}-2 \sqrt{1+\cot (x)}}{\sqrt{2 \left (-1+\sqrt{2}\right )}}\right )}{2 \sqrt{2 \left (-1+\sqrt{2}\right )}}-\frac{\tan ^{-1}\left (\frac{\sqrt{2 \left (1+\sqrt{2}\right )}+2 \sqrt{1+\cot (x)}}{\sqrt{2 \left (-1+\sqrt{2}\right )}}\right )}{2 \sqrt{2 \left (-1+\sqrt{2}\right )}}-\frac{1}{\sqrt{1+\cot (x)}}-\frac{\log \left (1+\sqrt{2}+\cot (x)-\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}+\frac{\log \left (1+\sqrt{2}+\cot (x)+\sqrt{2 \left (1+\sqrt{2}\right )} \sqrt{1+\cot (x)}\right )}{4 \sqrt{2 \left (1+\sqrt{2}\right )}}\\ \end{align*}
Mathematica [C] time = 0.136882, size = 71, normalized size = 0.31 \[ -\frac{1}{\sqrt{\cot (x)+1}}+\frac{1}{2} i \sqrt{1-i} \tanh ^{-1}\left (\frac{\sqrt{\cot (x)+1}}{\sqrt{1-i}}\right )-\frac{1}{2} i \sqrt{1+i} \tanh ^{-1}\left (\frac{\sqrt{\cot (x)+1}}{\sqrt{1+i}}\right ) \]
Antiderivative was successfully verified.
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Maple [B] time = 0.043, size = 356, normalized size = 1.6 \begin{align*}{\frac{\sqrt{2+2\,\sqrt{2}}\sqrt{2}}{8}\ln \left ( 1+\cot \left ( x \right ) +\sqrt{2}+\sqrt{1+\cot \left ( x \right ) }\sqrt{2+2\,\sqrt{2}} \right ) }-{\frac{\sqrt{2} \left ( 2+2\,\sqrt{2} \right ) }{4\,\sqrt{-2+2\,\sqrt{2}}}\arctan \left ({\frac{1}{\sqrt{-2+2\,\sqrt{2}}} \left ( 2\,\sqrt{1+\cot \left ( x \right ) }+\sqrt{2+2\,\sqrt{2}} \right ) } \right ) }-{\frac{\sqrt{2+2\,\sqrt{2}}}{8}\ln \left ( 1+\cot \left ( x \right ) +\sqrt{2}+\sqrt{1+\cot \left ( x \right ) }\sqrt{2+2\,\sqrt{2}} \right ) }+{\frac{2+2\,\sqrt{2}}{4\,\sqrt{-2+2\,\sqrt{2}}}\arctan \left ({\frac{1}{\sqrt{-2+2\,\sqrt{2}}} \left ( 2\,\sqrt{1+\cot \left ( x \right ) }+\sqrt{2+2\,\sqrt{2}} \right ) } \right ) }-{\frac{\sqrt{2+2\,\sqrt{2}}\sqrt{2}}{8}\ln \left ( 1+\cot \left ( x \right ) +\sqrt{2}-\sqrt{1+\cot \left ( x \right ) }\sqrt{2+2\,\sqrt{2}} \right ) }-{\frac{\sqrt{2} \left ( 2+2\,\sqrt{2} \right ) }{4\,\sqrt{-2+2\,\sqrt{2}}}\arctan \left ({\frac{1}{\sqrt{-2+2\,\sqrt{2}}} \left ( 2\,\sqrt{1+\cot \left ( x \right ) }-\sqrt{2+2\,\sqrt{2}} \right ) } \right ) }+{\frac{\sqrt{2+2\,\sqrt{2}}}{8}\ln \left ( 1+\cot \left ( x \right ) +\sqrt{2}-\sqrt{1+\cot \left ( x \right ) }\sqrt{2+2\,\sqrt{2}} \right ) }+{\frac{2+2\,\sqrt{2}}{4\,\sqrt{-2+2\,\sqrt{2}}}\arctan \left ({\frac{1}{\sqrt{-2+2\,\sqrt{2}}} \left ( 2\,\sqrt{1+\cot \left ( x \right ) }-\sqrt{2+2\,\sqrt{2}} \right ) } \right ) }-{\frac{1}{\sqrt{1+\cot \left ( x \right ) }}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\cot \left (x\right )}{{\left (\cot \left (x\right ) + 1\right )}^{\frac{3}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\cot{\left (x \right )}}{\left (\cot{\left (x \right )} + 1\right )^{\frac{3}{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\cot \left (x\right )}{{\left (\cot \left (x\right ) + 1\right )}^{\frac{3}{2}}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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