Question

Whose cardinal number is 5

Answer 1

Answer:

Set D = {3, 3, 5, 6, 7, 7, 9} has 5 element. Therefore, the cardinal number of set D = 5. So, it is denoted as n(D) = 5.

Answer 2

Answer:

Set D = {3, 3, 5, 6, 7, 7, 9} has 5 element. Therefore, the cardinal number of set D = 5. So, it is denoted as n(D) = 5.