Question

Si: n(A) = 12, n(B) = 18 y n(A ∩ B) = 7
Hallar: n(A ∆ B)​

Answer 1

Respuesta:

16

Explicación paso a paso:

n(A) = 12

n(B) = 18

n(AnB) = 7

Entonces:

n(A-B) = 12 - 7 = 5

n(B-A) = 18 - 7 = 11

Finalmente:

5 + 11 = 16

Answer 2

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