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Let A = {a, e, i, o, u} and B = {a, i, u}. Show that A∪B = A.

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Let A = {a, e, i, o, u} and B = {a, i, u}. Show that A∪B = A.

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A ∪ B = {a, c, i, o, u} = A

∴ A ∪ B = A

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