SOLUTION: for the given set, first caclulate the number of subsets for the set then calculate the number of proper subsets {15, 10, 16, 20, 19}

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Question 705937: for the given set, first caclulate the number of subsets for the set then calculate the number of proper subsets {15, 10, 16, 20, 19}
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!

The general formula for number of subsets is and the number of proper subsets is , where is the number of elements.
if given set { ., , , , .}, we can see that the number of elements is
so, the number of subsets is

and the number of proper subsets is

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