Question

Let X and Y be subsets of R, the set of all real numbers. The function of ????: X ➝ Y defined by ????(x) = x² for x ∊ X is one - one but not onto, if (Here R⁺ is the set of all positive real numbers) (a) X = Y = R⁺ (b) X = R, Y = R⁺ (c) X = R⁺, Y = R (d) X = Y = R

Answer 1

Answer:

d) X = Y = R will be the answer