Question

How do you find the domain of `f(x)=x/(3x-1)`?

Answer 1

`x/(3x-1)` is well defined for all `x in RR` except when `3x - 1 = 0`.

`3x - 1 = 0` when `x = 1/3`.

So the domain of `f(x)` is `{x in RR: x != 1/3}`