defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Differential Calculus Evaluation of derivatives
Let f: R → R be a function defined as f(x) = ex; for each x ϵ R, R is being the set of real numbers. Which one of the following is correct?
1
f is one-one but not onto
2
f is onto but not one-one
3
f is both one-one and onto
4
f is neither one-one nor onto