Final answer:
The function f(3) = 1/(x-3) is undefined at x = 3.
Step-by-step explanation:
To evaluate the function f(x) = 1/(x-3) at x = 3, we substitute 3 in place of x in the function.
So, f(3) = 1/(3-3).
Since the denominator becomes 0 when x = 3, the function is undefined at x = 3.
Therefore, f(3) does not have a value.