MCQ
The range of the function $f (x)=\frac{x+2}{|x+2|}$ is
- A{0,1}
- ✓{-1, 1}
- CR
- DR - {- 2}
✓
Answer
Correct option: B.
{-1, 1}
(B)
$f(x)=\frac{x+2}{|x+2|}$
$f(x)=\left\{\begin{array}{cc}-1, & x<-2 \\ 1, & x>-2\end{array}\right.$
$\therefore \quad$ Range of $f (x)$ is $\{-1,1\}$.
$f(x)=\frac{x+2}{|x+2|}$
$f(x)=\left\{\begin{array}{cc}-1, & x<-2 \\ 1, & x>-2\end{array}\right.$
$\therefore \quad$ Range of $f (x)$ is $\{-1,1\}$.
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