Which of the following are sets?
A. 1,2,3
B. {1,2},3
C. {{1,},2},3
D. {1,{2,},3}
E. {1,2,a,b}.
Answers
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In sets bracket are very important
Option a and d are sets
B and c are not sets
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Step-by-step explanation:
E.{1,2,a,b}
It is because the elements of a set have to be within curly brackets or second brackets. But the elements of A,B,C & D are not in curly brackets and so they are not sets.
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