Question

If e={x:x os an integer such that 1<x<20} and A={8,9,10,11,12,13,14} and B={2,4,6,8,10,12,14,16,18}
i)list down the element of A' and B'
ii)Are A-B and B-A equal set
iii)Find and compare the set (AUB) and AnB and share your observation​

Answer 1

Answer:

(i)

A' = {2,3,4,5,6,7,15,16,17,18,19}

B' = {3,5,7,9,11,13,15,17,19}

ii)

no, they not equal

A-B={9,11,13}

B-A={2,4,6,16,18}

iii)

AUB ={2,4,6,8,9,10,11,12,13,14,16,18}

AnB ={8,10,12,14}

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