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2015-12-10T21:44:32+05:30

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{1}
{2}
{1,2}
{ }  null set
the elements in it are 2, and the no.of subsets are 4.
No.of subsets = n ^2(square)
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2015-12-10T21:58:28+05:30
{ }, {1},{2},{1,2} are its subsets.
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