Question

if n(A)=5 , n(B)=7, n(AnB)=4 then find n(AuB)​

Answer 1

Step-by-step explanation:

the answer is 8

evaluate by formula

Answer 2

Answer:

given n(A)=5,n(B)=7,n(AnB)=4 so,

n(AuB)=n(A)+n(B)-n(AnB)

=5+7-4

=12-4

=8ans.

Step-by-step explanation:

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