Discussion
Let A = {1, 2, 3}. The number of proper subsets of A is:
Answer: B
A set with 'n' elements has \(2^n\) subsets in total.
Here, n=3, so the total number of subsets is \(2^3 = 8\).
A proper subset is any subset except the set itself. So, we subtract the set A from the total number of subsets.
Number of proper subsets = \(2^3 - 1 = 8 - 1 = 7\).
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