Question

if A = {p,q,r,s,t} B = { m,n,p,q,s} C ={ m,n,p,q,s} then verify associative property of intersection of sets​

Answer 1

Answer:

In the given question, We can see that Set B = C

But as we have to use the property,

We should know that

(AUB) U C = A U (BUC)

{p, q, r, s, t, m, n} U { m, n, p, q, s} = {p, q, r, s, t} U { m, n, p, q, s } . . . . . (1)

{ p, q, r, s, t, m, n } = { p, q, r, s, t, m, n}

•°• LHS = RHS by assosciative property of sets

Some important things used in the . . .(1) step in the given question is, If B is a subset of A, then A U B = A