Question

помогите пожалуйста решить примеры

Answer 1

$a) \sqrt{32} \times \sqrt{2} = \sqrt{32 \times 2} = \sqrt{64} = 8$
$b) \frac{ \sqrt{300} }{ \sqrt{3} } = \sqrt{ \frac{300}{3} } = \sqrt{100} = 10$
$v) \sqrt{19.6} = \sqrt{ \frac{196}{10} } = \frac{14}{ \sqrt{10} } = \frac{14 \sqrt{10} }{10} = \frac{7 \sqrt{10} }{5}$
$v) \sqrt{19.6} \times \sqrt{0.4} = \sqrt{196 \times 0.1 \times 4 \times 0.1} = 14 \times 0.1 \times 2 = 2.8$
$g) \sqrt{22.5} \times \sqrt{0.4} = \sqrt{225 \times 0.1 \times 4 \times 0.1} = 15 \times 0.1 \times 2 = 3$
$d) \frac{ \sqrt{15} }{ \sqrt{240} } = \sqrt{ \frac{15}{240} } = \sqrt{ \frac{1}{16} } = \frac{1}{4} = 0.25$
$e) \frac{ \sqrt{3.38} }{ \sqrt{0.2} } = \sqrt{ \frac{3.38}{0.2} } = \sqrt{ \frac{33.8}{2} } = \sqrt{16.9} = \sqrt{ \frac{169}{10} } = \frac{13}{ \sqrt{10} } = \frac{13 \sqrt{10} }{10}$