Question

Помогите пожалуйста /10.29

Answer 1

10.29
а)
$\sqrt{2 \times 4} - 7 = \sqrt{1} = 1$
б)
$\sqrt{25 + 11} - \sqrt({ \frac{625}{4} } ) = \\ 6 - \frac{25}{2} = 6 - 12.5 = - 6.5$
В)
$\sqrt{33 - 4 \times 2} = \sqrt{33 - 8} = \\ \sqrt{25} = 5$
$\sqrt{ \frac{225}{25} } + \sqrt{ \frac{25}{225} } = \frac{15}{5} + \frac{5}{15} = \\ \frac{45 + 5}{15} = \frac{50}{15} = 3 \frac{5}{15} = 3 \frac{1}{3}$