Respuesta :

Answer:

=[5,6,7,8,9]

Step-by-step explanation:

a=(5,6,7)

B=(7,8,9)

AUB=(5,6,7)U(7,8,9)

=[5,6,7,8,9]

sintu

Step-by-step explanation:

while uniting there A and B double number shouldn't be written in place of double we should write only one number and that is the model for these type of. question

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