Question

consider the real function f(x)=x+2/x-2
find the domain and range of f(x)

​

Answer 1

Answer:

3-X ≠ 0

X≠3

so domain R-{3}

and

range

put f(x)=y

3y-yx=x-2

3y-x(y+1)=2

x=3y-2/y+1

so R-{1} is the range