Question

If n (AuB) =10,n ( A) = 5 and n (B) = 7 find n (A intersection B) .​

Answer 1

Answer:

n(A intersection B) = 2

• Step-by-step expositions:

Formula:

• n(AUB) = n(A) + n(B) - n(A intersection B)
• 10 = 5 + 7 - n(A intersection B)
• n(A intersection B) = 12 - 10
• n(A intersection B) = 2

Answer 2

Answer:

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