Question

let p = {1, 3, 5, 7} , q = {3, 7, 9, 11} , r = {1, 5, 8, 11} then verify the following
1: p U q = q U p
2: ( p U q ) U r = p U (q U r )
3: p ∩ ( q ∪ r ) = ( p ∩ q ) U ( p ∩ r )
please answer this i am waiting

Answer 1

Answer:

the answers are in the images