Question

Let A = { x : x ∈ R; x is not a positive integer } Define f : A → R as f(x) = $\frac{2x}{x-1}$, then f is

• A. injective but not surjective
• B. surjective but not injective
• C. bijective
• D. neither injective nor surjective

Answer 1

Answer: (A)

injective but not surjective

Answer 2

The correct answer is () :