Question

31. Se n(A) = 18, n(B) = 23, n(A n B) = 7, determine
n(A UB).
por favoorrr​

Answer 1

Explicação passo-a-passo:

n(A U B) = n(A) + n(B) - n(A ∩ B)

n(A U B) = 18 + 23 - 7

n(A U B) = 41 - 7

n(A U B) = 34