If U=set of natural numbers andA - x: 2x-5=9.FindA".
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U= N: Set of natural numbers
(i) {x:xis an even natural number}′={x:x is an odd natural number}
(ii) {x:xis an odd natural number}′={x:xis an even natural number}
(iii) {x:x is a positive multiple of 3}′={x:x∈N and x is not a multiple of 3}
(iv) {x:xis a prime number}′={x:xis a positive composite number and x=1}
(v) {x:xis a natural number divisible by 3 and 5}′
={x:xis a natural number that is not divisible by 3 or 5}
(vi) {x:xis a perfect square}′={x:x∈Nand x is not a perfect square}
(vii) {x:xis a perfect cube}′={x:x∈Nand x is not a perfect cube}
(viii) {x:x+5=8}′={x:x∈Nand x=3}
(ix) {x:2x+5=9}′={x:x∈Nandx=2}
(x) {x:x≥7}′={x:x∈Nandx<7}
(xi) {x:xϵNand2x+1>10}′={x:x∈Nandx≤29}
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