Respondido

5) Se n(A) = 18, n(B) = 23, n(A ∩ B) = 7, determine n(A U B)

Resposta :

FRANCISCOSUASSUNA12GO

Resposta:

34

Explicação passo-a-passo:

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

n(AuB)=18+23-7

n(AuB)=34

MAKAVELI1996GO

n(AUB) = n(A) + n(B) - n(A∩B)

n(AUB) = 18 + 23 - 7

n(AUB) = 41 - 7

n(AUB) = 34

atte. yrz

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