Posted by Bryan on Thursday, January 26, 2012 at 7:57pm.
The total number of subsets = 2^7 = 128
This includes the null set
So what we want is
the null set, the set of singles, the set of doubles and the set of triples
= 1 + C(7,1) + C(7,2) + c(7,3)
= 1 + 7 + 21 + 35
= 64
So the number of subsets with at most 3 elements is 64
Related Questions
math - Assume that the set S has 14 elements. How many subsets of S have at most...
Math - Assume that the set S has 10 elements. How many subsets of S have at most...
Combinations - Assume that the set S has 10 elements. How many subsets of S have...
math - For the set X={m,n.p,q,r,s}, let R be the relation on P(X) (power set) ...
math - for a set of three elements find the number of different subsets of 2 ...
Math - I'm new to this but.. how many subsets does a five element have. How ...
math - how many nonempty subsets does a set with ten elements have... my ...
Math - How many subsets of a set with 100 elements have more than one element? ...
Math - 3 questions if you can help me. 1. Calculate the number of subsets and ...
Math - 3 questions if you can help me. 1. Calculate the number of subsets and ...
For Further Reading
