√1000 15.23 a) 160; √2. Ο 15.24 a) 50

15.23

а) $$ \frac{\sqrt{1000}}{\sqrt{160}} = \sqrt{\frac{1000}{160}} = \sqrt{\frac{100}{16}} = \frac{\sqrt{100}}{\sqrt{16}} = \frac{10}{4} = 2,5 $$.

15.24

а) $$ \frac{\sqrt{2}}{\sqrt{50}} = \sqrt{\frac{2}{50}} = \sqrt{\frac{1}{25}} = \frac{\sqrt{1}}{\sqrt{25}} = \frac{1}{5} = 0,2 $$.

Ответ: 15.23 a) 2,5; 15.24 a) 0,2