Question

SENDO O CONJUNTO A={ 2,4,6,8,10,12} e B ={ 1,3,4,5,6,8,9}, determine a quantidade de elementos na n(A U B) pela formula
n(A U B) = n(A) + n(B) - n(A ∩ B)

Answer 1

Resposta:

n(A U B) = {1,2,3,4,5,6,8,9,10,12}

n=10

n(A) ={2,4,6,8,10,12}

n=6

n(B)={1,3,4,5,6,8,9}

n=7

n(A B)={4,6,8}

n=3

n(A U B)= 6+7-3= 10