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Type: Multiple-Choice
Category: Combinations and Permutations
Level: Grade 11
Author: jpflgator
Last Modified: 6 years ago

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Combinations and Permutations Question

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Grade 11 Combinations and Permutations

Simplify the expression.
(n+1)!(n-1)!
  1. n
  2. n(n+1)
  3. 1
  4. (n+1)
  5. none of these are correct