question_answer

The range of the function \[f(x)=\frac{x+2}{\left| x+2 \right|}\]: is

A) {0, 1} 

B)   {-1, 1}

C) R                     

D)   R -{-2}

Correct Answer: B

Solution :

\[f(x)=\frac{x+2}{\left| x+2 \right|}\]