Question

$\frac{(4m-1)!}{(4m-3)!}$ Сократите дробь

Answer 1

$\frac{(4m-1)!}{(4m-3)!} = \frac{(4m-1)(4m-2)(4m-3)(4m-4)\cdot...\cdot 1}{(4m-3)(4m-4)\cdot ...\cdot 1} =(4m-1)(4m-2)$