Question

I'm having trouble, can someone walk me through solving it? Please, I really need help

Answer 1

1/3

Explanation:

f(√x+1)= 1/x

for f(2)

2= √x+1 ⇒ 4= x+1 ⇒ x= 3

f(2)= f(√3+1) and f(√3+1) = 1/3

so f(2)= 1/3