U = { x/x 15 a natural no. between. I to 20}
A = {y/y in a even no. less than 15} Find A'
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Express {x: x= n/ (n+1), n is a natural number less than 7} in roster form. Explanation: n/(n+1) = 1/(1+1) = 1⁄2 and n>7. ... Explanation: Empty set is a subset of every set. 8.
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