ExplanationforA: Natural numbers which are not divisible by 2 are the odd natural numbers and they are infinite so it is not possible to write all numbers.
ii) B = (0,1,2,3,4)
Explanation:-0.5<x<4.5
sowewillwriteintegerswhichliesinthisinterval.
iii) C = (-1,0,1)
Explanation:x²<4=>x€(-2,2)
so we will write integers which lies in this interval.
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Answer:
i) A = (1,3,5,7,9,11,13,15,,,,,,, upto infinite )
Explanation for A: Natural numbers which are not divisible by 2 are the odd natural numbers and they are infinite so it is not possible to write all numbers.
ii) B = (0,1,2,3,4)
Explanation: -0.5<x<4.5
so we will write integers which lies in this interval.
iii) C = (-1,0,1)
Explanation : x²<4 => x€(-2,2)
so we will write integers which lies in this interval.