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Repeating an element while listing a set:
AEmpties the set
BSplits the set
CDoes not change it
DDoubles its size
Answer & Solution
Correct answer: C. Does not change it
1. A set records only which things belong.
2. How often they are written does not matter.
3. Repetition does not change the set.
_Source: NCERT Class 11 Mathematics, Chapter 1, Sets._
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