Question

n(aUb)=100 n(a) =20 n(b) =30 find n A intersection B​

Answer 1

Answer:

n(aUb)=100 n(a) =20 n(b) =30

n(A intersection B)= n(a)+n(b)-n(aUb)

                              =20+30-100

                              =50-100

                              =-50

Step-by-step explanation:

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