Question

nA= 18 ,n(AUB)=45 and nAnB=6 find nBand nA-B and nB-A
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Answer 1

Answer:

n(A-B) = 12

n(B-A) = 27

Step-by-step explanation:

n(A - B) = n(A) - n(A n B)

=> n(A - B) = 18-6

=> n(A - B) = 12

n(B - A) = n(B) - n(A n B)

=> n(A - B) = 33-6

=> n(A - B) = 27