Question

(a) If U = {y:5 20), P= {7,8,12, 19; and Q = {12, 15, 17, 19), find PU Q and P-Q.

Answer 1

Solution,

P={7,8,12,19}

Q={12,15,17,19}

P U Q={7,8,12,19} U { 12,15,17,19}

={ 7,8,12,15,17,19}

P-Q={7,8,12,19}-{12,15,17,19}

={7,8}

Hope it helps

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