question_answer

The value of \[\underset{x\to 0}{\mathop{\lim }}\,{{\left( \cos x \right)}^{{{\cot }^{2}}x}}\]

A) \[{{e}^{-1~}}\]                      

B)  \[{{e}^{-1/2}}\]          

C)  1                    

D)  Not existing