Math Problem Statement

Solution

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Math Problem Analysis

Mathematical Concepts

Factorial
Combinatorics
Simplification

Formulas

n! = n × (n-1) × ... × 1
Binomial coefficient formula: C(n, r) = n! / (r! × (n - r)!)

Theorems

Factorial properties
Combinatorial simplification

Suitable Grade Level

Grades 9-12