The number of proper sub sets of the set
{3, 4, 5, 6, 7} is
a) 32 b) 31 c) 30 d) 25
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Sets doubt
Replies (3)
Its 31 refer the board book.
mihmir pls can u work out if u can?
Hi praitk the workout is in the following manner:
Let total no. of elements in a set be 'n'.
So as per the formula total no of substes are 2^n.
And to obtain proper subsets we have to deduct the set itself.
So total no. of proper subsets=2^n-1.
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