Question

The number of elements in a set is called the cardinal number of set.

14. Let A= {1,2,4,5,6,7), the number of elements in set A is
1) 5
2) 4
3) 7
4) 6

15. The cardinal number of set A= (a, b, c, a, d }is
1) 3
2) 4
3) 5
4) 7​

Answer 1

Answer:

I don't no please tell me what is answer

Answer 2

14. option (4) 6

15.option (2) 4