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Question
Express the following sets in roster form:
J = {x: x e N and 2x – 3 ≤17}
Solution
2x – 3 ≤ 17
⇒ 2x ≤ 17 + 3 2 x ≤ 20
⇒ x ≤ `20/2`
x ≤ 10
∴ J = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
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