If f(x) =$$\frac{x+1}{x-1}$$​, find the value of f(f(2))).

Correct option is A

Given:
Function f(x) =$$\frac{x+1}{x-1}$$​​
We need to find the value of f(f(2)) .
Formula Used:
First, calculate f(2) using the function f(x) =$$\frac{x+1}{x-1}$$​ , then substitute this result back into the function to find f(f(2)) .
Solution:
 Calculate f(2) :
​$$f(2) = \frac{2+1}{2-1} = \frac{3}{1} = 3$$​​
 Calculate f(f(2)) = f(3) :
​$$f(3) = \frac{3+1}{3-1} = \frac{4}{2} = 2$$​​
Therefore, the value of f(f(2)) = 2 .