Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Mathematics Sets Set Theory and types of Sets
Consider the following statements :
1. If f is the subset of Z × Z defined by f = {(xy, x − y); x, y ∈ Z}, then f is a function from Z to Z.
2. If f is the subset of N × N defined by f = {(xy, x + y); x, y ∈ N}, then f is a function from N to N.
Which of the statements given above is/are correct?
1
1 only
2
2 only
3
Both 1 and 2
4
Neither 1 nor 2
5
Question Not Attempted