ICSE Class 8 Answered
let u be the Universal set,and A and B be any two sets of n(u)=20,n(a)=12,n(b)=4 and n(a intersection b)=17 find the following
1.n(A intersection B)
Asked by nallerugurunanditha | 15 Jul, 2019, 08:00: PM
Expert Answer
Let U be the Universal set and A and B be any two sets of n(U) = 20, n(A) = 12, n(B) = 4 and n(A ∩ B)' = 17
n(A ∩ B) = n(U) - n(A ∩ B)'
= 20 - 17
= 3
Answered by Sneha shidid | 16 Jul, 2019, 10:32: AM
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