contestada

If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is true?
A B = {7}
B B
B A

Respuesta :

I have a feeling, these were the answer choices you were trying to make: A ∪ B = {7}
B ⊆ B
B ⊂ A      Also, the second answer is the only one that's true

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