n(a)=3o ,n(anb)=12 ,n(aub)=50find n(b)
Answers
Answered by
0
Answer:
32
Step-by-step explanation:
n(B)=n(AUB)+N(AnB)-n(A)
= 50+12-30=32
Answered by
0
Answer:
the ans is option b) 20
Step-by-step explanation:
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