Question

Find the Domain of the function f(x) = x-1/x-3​

Answer 1

Answer:

Domain of a function means selecting the values which makes the domain defined.

In this case,

If the denominator is zero then the function is not defined,

So for what value of x will the denominator be 0 ?

3 right ?

when

x= 3 ,

f(x)=10

which is not defined.

If you keep any other values except 3, your function is valid.

So, the domain is all values of the real line except 3.

x= R -{3}