Question

How do you find the domain of `f(x)=5/(x-3)`?

Answer 1

Domain = `R - {3}`
R = set of real numbers

Explanation:

Domain cant be that number which when put into function gives undefined value. `:.` in `5/(x-3) , x-3 != 0`.
`:.` we can put any real number in the function to get a value but not 3.