Question 1020355: M={x|x€N and 5< X < 14}
How many subsets does M have?
How many proper subsets does M have?
Answer by robertb(5830)   (Show Source):
You can put this solution on YOUR website! If x is a natural number between 5 and 14, then x = 6, 7, 8, 9, 10, 11, 12, and 13, a total of eight numbers.
Thus, M has  =256 subsets, while it has  = 255 proper subsets.
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