A is a subset of a set B if every element of A is also an element of B.
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8 subsets
Subsets of Sets was created in 2001-08.
To get the number of subsets of size less than 2:Total number of subsets of a set of size N is 2NTotal number of subsets of size 1 is 100Total number of subsets of size 0 is 1Total number of subsets of size 2 is 100*99/2 = 4950Sum up: 100 + 1 + 4950 = 5051Subtract this from total subsets: 2100 - 5051 (Answer)
If the universal set contains N elements then it has 2N subsets.
If you have a set of 6 elements, you can make a total of 26 different subsets - including the empty set and the set itself.