1.

If a =(1,2,3,4)and b=(3,4,5,6,7)find (1)aub(2)anb(3)a-b (4)b-a

Answer»

ANSWER:

AUB={1,2,3,4,5,6,7}

ANB={3,4}

A-B={1,2}

B-A{5,67}



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