Let f(x) = x² in R, then the range of f will be:

Correct option is B

Given:
f(x) = x²
Solution:
f(x) = x²
=> y = x² => x = ​± $$\sqrt y$$​​
=> y < 0 there is no real value of x
=> y ≥ 0
=> Range of f = [0, ∞]
∴ The range of f will be non negative numbers (Since Zero is also in the range)