August 2022 1 4 Report

помогите срочно нужно решение сократите дробь

а)n!/(n-1)! б) (2k+1)!/(2k-1)! в) n!/2!*(n-2)! г) (4m-1)!/(4m-3)!

 

14*Cx сверху над cx написано x-2 =15A в квадрате и снизу у 15 а написано x-3

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