1.

If P = {1,2,5,7,9}, Q = {2,3,5,9,11}, R = {3,4,5,7,9} and S = {2,3,4,5,8} then find(Q ∩S)∩R​

Answer»

ANSWER:

QN(S)nR={5}

Step-by-step explanation:

(QnS) will CONTAIN all the elements common to both q and s

so (QnS)={2,5}

(QnS)nR will  contain elements common to above set {2,5} and R

so Qn(S)nR={5}

hope it helped you : )

here n is intersection


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