SOLUTION: Given the set W = {m, o, u, s, e}, how many different two - element subsets does W have?

Algebra ->  Subset -> SOLUTION: Given the set W = {m, o, u, s, e}, how many different two - element subsets does W have?      Log On


   

Question 1015535: Given the set W = {m, o, u, s, e}, how many different two - element subsets does W have?
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
5 LETTERS, CHOOSE 2 = 5C2 = (5•4)/2! = 20/2 = 10

Here they are:


{m,o}, {m,u}, {m,s}, {m,e}, 
{o,u}, {o,s}, {o,e}, 
{u,s}, {u,e}, 
{s,e}

Edwin