Derivada de е^arctgx

           acot(x)
(1 + 2*x)*e       
------------------
            2     
    /     2\      
    \1 + x /      

$$\frac{\left(2 x + 1\right) e^{\operatorname{acot}{\left(x \right)}}}{\left(x^{2} + 1\right)^{2}}$$

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/                 2          \         
|      1       8*x      6*x  |  acot(x)
|2 - ------ - ------ - ------|*e       
|         2        2        2|         
\    1 + x    1 + x    1 + x /         
---------------------------------------
                       2               
               /     2\                
               \1 + x /                

$$\frac{\left(- \frac{8 x^{2}}{x^{2} + 1} - \frac{6 x}{x^{2} + 1} + 2 - \frac{1}{x^{2} + 1}\right) e^{\operatorname{acot}{\left(x \right)}}}{\left(x^{2} + 1\right)^{2}}$$

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