Math Problem Statement

Câte numere naturale impare sunt de forma abcd cu a find nenul și a > b > c > d

Solution

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Math Problem Analysis

Mathematical Concepts

Combinatorics
Number Theory
Inequalities

Formulas

Combination formula: C^k_n = n! / (k!(n - k)!)

Theorems

Combination theorem

Suitable Grade Level

Grades 10-12