Question

SI N(A) = 4, N(B) = 5 Y N(A U B) = 9, ENTONCES N(P(A - B)) ES:​

Answer 1

Respuesta:

16

Explicación paso a paso:

Aplicando formulas de conjuntos

N(A U B) = N(A) + N(B) - N(A ∪ B)

9 = 4 + 5 - N(A ∪ B)

N(A ∪ B) = 0

N (A-B) = N(A) - N(A ∪ B)

N (A-B) = 4 - 0 = 4

N ( P(A-B) ) = 2⁴ = 16