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

the answers are in the images

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according to newton’s cannonball model, what happens if the cannonball's velocity is enough to overpower the pull of earth’s gravitystep-by-step explanation:

it is true

step-by-step explanation:

all the combinations add up i used   calculator