Question

Let A=[{1,2,3},{4,5},{6,7,8}
List the elements of A

Answer 1

Answer:

Number of elements in A=10

Number of subsets of A containing exactly two elements

= Number of ways we can select 2 elements from 10 elements

10

C

2

=

2

10×9

=45

∴ Number of subsets of A containing exactly two elements =45

Step-by-step explanation:

please mrk as brainlist