SOLUTION: Let A = {1, 2, 3, 4, 5, 6}.
(a) How many subsets of 4 elements does the set A have?
(b) How many subsets of A have no more than 3 elements?
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Question 998322: Let A = {1, 2, 3, 4, 5, 6}.
(a) How many subsets of 4 elements does the set A have?
(b) How many subsets of A have no more than 3 elements?
Answer by ikleyn(52800) (Show Source): You can put this solution on YOUR website!
.
Let A = {1, 2, 3, 4, 5, 6}.
(a) How many subsets of 4 elements does the set A have?
(b) How many subsets of A have no more than 3 elements?
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a) = = = 15.
b) + + = 6 + 15 + 20 = 41.
Or 42, if to add the empty subset.
Do you know what is?
If not, look into the lesson Introduction to Combinations in this site.
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