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If A= {-2,-1, 1, 2, 3, 0}, B= {0, 1, 2, 3}. Find n(A-B).Instructions: just write the number in the provided blank.

Question

If A= {-2,-1, 1, 2, 3, 0}, B= {0, 1, 2, 3}. Find n(A-B).Instructions: just write the number in the provided blank.

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Solution

Para encontrar n(AB) n(A - B) , primero debemos determinar el conjunto AB A - B . Esto se hace eliminando de A A todos los elementos que también están en B B .

Dado: A={2,1,1,2,3,0} A = \{-2, -1, 1, 2, 3, 0\} B={0,1,2,3} B = \{0, 1, 2, 3\}

Eliminamos de A A los elementos que están en B B : AB={2,1} A - B = \{-2, -1\}

Ahora, contamos el número de elementos en AB A - B : n(AB)=2 n(A - B) = 2

Respuesta: 2

This problem has been solved

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