If R denotes the set of all real numbers then the function f: R arrow R defined by f(x) = |x| is ...........

Question

If R denotes the set of all real numbers then the function f: R arrow R defined by f(x) = |x| is ........... (A) one - one only (B) onto only (C) both one-one and onto (D) neither one-one nor onto

Tardigrade Admin · Accepted Answer

Correct answer is (d) neither one-one nor onto

Q. If R denotes the set of all real numbers then the function f:R→R defined by f(x)=∣x∣ is ...........

one - one only

onto only

both one-one and onto

neither one-one nor onto

Correct answer is (d) neither one-one nor onto

Q. If $R$ denotes the set of all real numbers then the function $f : R \to R$ defined by $f (x) = ∣ x ∣$ is ...........