C(n,r) + C(n,r+1) = C(n+1, r+1).
Answer
FALSE
Solution
Pascal's identity: C(n,r) + C(n,r-1) = C(n+1, r). Wait: C(n,r) + C(n,r+1) = C(n+1, r+1). Yes, this is correct.
About this question
Subject: Mathematics · Chapter: Permutations and Combinations · Topic: Applications
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