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N(a)=30 (aunionb)=50 n(a intersection b)=12 then find n(b)please very urgent if you answer I will mark your answer as best answer please please​

Answer»

Step-by-step EXPLANATION:

n(a union B) =n(a) +n(b) -n(a INTERSECTION b)

50= 30+ n(b) -12

50= n(b) +18

n(b) = 50-18=32



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