Question

state the largest domain of each functions
f:x=1/1-x and g:x=x-1/x
where x is the real number

Answer 1

impatient much?
Once is enough, thank you.
Repeated postings will not get faster or better responses.

Answer 2

f: x ∈ (-∞, 1)
g: x ∈ (0, ∞)