InterviewSolution
Saved Bookmarks
| 1. |
Which of the following are examples of the null set? A = {x : x ϵ N, 1 < x ≤ 2}. |
|
Answer» Natural numbers = 1, 2, 3, 4, 5, 6, 7,… Natural number greater than 1 (1 < x) = 2, 3, 4, 5, .. Natural number less than or equal to 2 (x ≥ 2) = 1 A number cannot be simultaneously greater than 1 and less than equal to 2 ∴ no elements in this set ∴ It is a null set. |
|