Question

find point of discontinuity if any for f x is equal to one upon X + 5​

Answer 1

answer :::. X=2

Step-by-step explanation:

f(f(x)= 1/{1-f(x)}= 1/[1-{1/(x-1)}]=( x-1)/(x-2)...

so the function y has discontinuity at x = 2