Question

A={x:x belongs to N,x is a multiple of 4}
B={x:x belongs to N,x is a multiple of 6}
C={x belongs to N,x is a multiple of 4 and 6}.
Find A union B.
What can you say about A union B and C​

Answer 1

n(A)={4,8,12,16,20,24,28,32,36,40,44,.....}

n(B)={6,12,18,24,30,36,42,48,54,60,66,.....}

Thus,n(AUB)={12,24,36,48,......}

n(C)=n(AUB)={12,24,36,48,.......}

Answer 2

Answer:

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