The function f : N --> N deined by f(n) = 2n + 3 is
A. | surjective |
B. | not surjective |
C. | injective |
D. | none of these |
Option: C Explanation : Click on Discuss to view users comments. |
The number of distinct relations on a set of 3 elements is
A. | 8 |
B. | 9 |
C. | 18 |
D. | 512 |
Option: D Explanation : Click on Discuss to view users comments. |
If relation R over {a, b, c} is given by R = {(a, a), (a, b), (b, a), (b, b), (c, c)}, then which of the following properties does R have?
A. | Symmetry |
B. | Reflexivity |
C. | Transitivity |
D. | All of these |
Option: D Explanation : Click on Discuss to view users comments. |