Question 1152322: List the number of these subsets
A={1,2,3,4}
B={a,b,c}
Answer by math_helper(2461)   (Show Source):
You can put this solution on YOUR website! List the number of these subsets
A={1,2,3,4}
B={a,b,c}
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I will answer:
Compute the number of subsets for these sets:
A={1,2,3,4}
B={a,b,c}
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For a set of n elements, there are  subsets. This comes from having a choice to include or exclude each element in any given subset.
Set A has four elements so there are  subsets.
[ For the number of proper subsets, the answer is  because we exclude the one case of choosing every element. ]
Set B has three elements, apply the same idea. You may want to list out the subsets themselves to prove to yourself there are  subsets.
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