Asked by Kenneth
How many subsets of set T have 2 elemnts if set T has 5 elements?
Answers
Answered by
MathMate
The number of possible subsets with two elements is the number of combinations possible by choosing two elements out of 5
C(5,2) = 5!/(2!(5-2)!) = 5*4/2 = 10
For more information, see also:
http://en.wikipedia.org/wiki/Combination
C(5,2) = 5!/(2!(5-2)!) = 5*4/2 = 10
For more information, see also:
http://en.wikipedia.org/wiki/Combination
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