mayamaria2614 mayamaria2614
  • 16-10-2020
  • Mathematics
contestada

Suppose n(U) = 150, n(A) = 35, and n(B) = 89.
(a) If n(A U B) = 90, find n(A n B).

Respuesta :

UtsabDuwadi
UtsabDuwadi UtsabDuwadi
  • 16-10-2020

Answer:

34

first of all use formula:

n(AUB)=n(A)+n(B)-n(AnB)

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