Let A = {x: x is a natural number and a factor of 18}
B= {x: x is a natural number and less than 6}
Find A ∪ B and A ∩ B Choose the correct choice:
A) A ∩ B = {1,2,3} B) A ∩ B = {2,5,4} C) A ∪ B = {5,7,9} D) A ∪ B = {1,2,3} E) A ∪ B = {2,5,4}
A ∩ B = {1,2,3}= {1,2,3,6,9,18}   B= {1,2,3,4,5} Therefore , correct answer : A ∩ B = {1,2,3} ∩ B = {1,2,3} (A ∩ B = {1,2,3})
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Let A = {x: x is a natural number and a factor of 18}
B= {x: x is a natural number and less than 6}
Find A ∪ B and A ∩ B