Given n(U)=70​, n(A)=29​, n(B)=21​, and n(A ∩ B) =4​,  find (A∪B)'

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Q: On the other hand, we consider 23 as follows: -p+v9p? +4p+4p/4p+1 1+2p+ /4p+I 13 -p+V(3p + /T+4p)ʻ –…

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