Discussion
Let A = {x : x is an integer and -3 < x ≤ 4}. Find n(A).
Answer: B
The condition -3 < x ≤ 4 means x can be any integer strictly greater than -3 and less than or equal to 4.
The integers satisfying this condition are: -2, -1, 0, 1, 2, 3, 4.
The set A = {-2, -1, 0, 1, 2, 3, 4}.
The number of elements, n(A), is 7.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development