Question

b) The sets A and B are having elements 10 and 8,n(A n B) =2, the n(A UB) is

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Answer 1

Answer:

given:

n(N)=3,n (B)=5,n (A,B)=2

we know that,

n (A,B)=n (A)+n (B)

-n(A,B)

n (A,B)=3+5-2=6