Question

let n (u) - 700,
n (A) = 200, n(B)=300,
n (AnB) = 100 then n(A' n B') is equal to.​

Answer 1

Step-by-step explanation:

n(A'nB') = n(AuB)'

n(AuB) = 200+300-100 = 400

finally the answer is n(A'nB') = n(AuB)'= n(u) - n(AuB)

which is 700-400 =300

Answer 2

Answer:

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