Question

[Pham Trong Bach]

Cho hàm số:  $f\left(x\right)=\left\{\begin{array}{c}\frac{x}{x+1},x\ge 0\\ \frac{1}{x-1},x<0\end{array}\right.$. Giá trị  $f\left(0\right),f\left(2\right),f(-2)$ là:

A.  $f\left(0\right)=0,f\left(2\right)=\frac{2}{3},f(-2)=2$

B.  $f\left(0\right)=0,f\left(2\right)=\frac{2}{3},f(-2)=-\frac{1}{3}$

C.  $f\left(0\right)=0,f\left(2\right)=1,f(-2)=-\frac{1}{3}$

D.  $f\left(0\right)=0,f\left(2\right)=1,f(-2)=2$

Answer 1

[Cao Minh Tâm]

Đáp án B