SOLUTION: Show that ((n+1) combination 1) - (n combination 1) = 1
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Question 1133872: Show that ((n+1) combination 1) - (n combination 1) = 1
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
"((n+1) combination 1)" is the number of ways you can choose 1 of (n+1) objects. Obviously, that number is (n+1).
Similarly, "(n combination 1)" is the number of ways you can choose 1 of n objects, which is clearly n.
So ((n+1) combination 1) - (n combination 1) = (n+1)-n = 1
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