Question

plss ans this i am waiting for your ans..​

Answer 1

Answer:

Step-by-step explanation:

Letting A represents (f(x))^2

root(A) + root(A-1) = 2^x

A - (A-1) = 1

## root(A) - root(A-1) = 2^(-x)

## 2 root(A) = 2^x + 2^(-x)

##f(x) = (2 ^ x + 2 ^ (-x) ) / 2

The lowest value of f(x) occurs when x = 0 which f(0) = ( 1+1 )/2 = 1

and the function can go infinite-ly  so it would be [ 1 , infinite )