Question

Найдите значени:
Помогите пожалуйста ​

Answer 1

Ответ:

а)

$\frac{10 \times 11 \times 12 \times 13 \times 14 \times 15}{2 \times 3 \times 4 \times 5 \times 6} = \frac{11 \times 13 \times 14 \times 15}{6} = 11 \times 13 \times 7 \times 5 = 5005$

б)

$\frac{2 \times 3}{5 \times 6 \times 7 \times 8} = \frac{1}{5 \times 7 \times 8} = \frac{1}{280}$

в)

$\frac{5 \times 6}{8 \times 9} = \frac{5 \times 3}{4 \times 9} = \frac{5}{4 \times 3} = \frac{5}{12}$