Question

N(P)=15 ; n(q)=22;n (p u q) =30 hallar: (p n q )

Answer 1

n(p u q) = n(p) + n(q) - n(p n q)
30 = 15 + 22 - n(p n q)
30 = 37 - n(p n q)
n(p n q) = 37 - 30
n(p n q) = 7

Respuesta = 7