Question

If n(aUb)=5,n(a)=8,n(b)=2
find intersection of A and B

Answer 1

Answer:

n(aUb)=5,n(a)=8,n(b)=2

n(aUb)=n(a)+n(b)-n(a∩b)

5=8+2-n(a∩b)

5=10-n(a∩b)

n(a∩b)=10-5

n(a∩b)=5

plz mark

Step-by-step explanation:

Answer 2

Solution:-

n(aUb) = n(a) + n(b) - n(aÚb)

[ n(aUb) = 5, n(a) = 8, n(b) = 2 ]

5 = 8 + 2 - n(aÚb)

n(aÚb) = 5

Here, Ú means intersection