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If A = {2, 3, 5}, find A ∪ ∅ and ∅ ∪ A and compare.

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If A = {2, 3, 5}, find A ∪ ∅ and ∅ ∪ A and compare.

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Given sets A = {2, 3, 5} and ∅ = { } 

A ∪ ∅ = {2,3,5} ∪ { } = {2,3,5} 

∅ ∪ A = { } ∪ {2, 3, 5} = {2,3,5} 

A ∪ v = ∅ ∪ A = A

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