Question

find the range: f(x)=x^2+2,x € R​

Answer 1

Step-by-step explanation:

In the function , x can assume any real value. however for all x, x^2 will be positive and equal to or more than 2. hence x^2+2 will be positive for all x. thus range of the function will be any real positive number. in notation

R = {f(x)/ f(x) >=2, f(x) E R}

or R = [2,infinity)