Question

$\sqrt{8 } \times \sqrt{2 }$
$\sqrt{50} \times \sqrt{0.5}$
$\sqrt{8.1} \times \sqrt{10}$
$\sqrt{640} \times \sqrt{0.1}$
$\sqrt{2} \times \sqrt{72}$
$\sqrt{62.5} \times \sqrt{10}$
$\sqrt{} \frac{2}{3} \times \sqrt{} \frac{3}{8}$
$\sqrt{} \frac{1}{18} \times \sqrt{2}$
$\sqrt{} \frac{4}{3} \times \sqrt{} \frac{1}{3}$
$\sqrt{0.016} \times \sqrt{10}$

срочно надо , спасибо

Answer 1

Пошаговое объяснение:

$\[\begin{gathered}\sqrt 8 *\sqrt 2=\sqrt {8*2} =\sqrt {16} =4 \hfill \\\sqrt {50} *\sqrt {0.5}=\sqrt {50*0.5}=\sqrt {25}=5\hfill \\\sqrt {8.1} *\sqrt {10}=\sqrt {8.1*10}=\sqrt {81}=9\hfill \\\sqrt {640} *\sqrt {0.1}=\sqrt {640*0.1}=\sqrt {64}=8 \hfill \\\sqrt 2*\sqrt {72}= \sqrt {2*72}=\sqrt {144}=12 \hfill \\\sqrt {62.5}*\sqrt {10}= \sqrt {62.5*10}= \sqrt {625}=25 \hfill \\ \end{gathered} \]$$\[\begin{gathered}\sqrt {\frac{2}{3}} *\sqrt {\frac{3}{8}}=\sqrt {\frac{{2*3}}{{3*8}}}=\sqrt {\frac{1}{4}}=\frac{1}{2} \hfill \\\sqrt {\frac{1}{{18}}} *\sqrt 2=\sqrt {\frac{1}{{18}}*2}=\sqrt {\frac{1}{9}}=\frac{1}{3} \hfill \\\sqrt {\frac{4}{3}} *\sqrt {\frac{1}{3}} = \sqrt {\frac{{4*1}}{{3*3}}}=\sqrt {\frac{4}{9}}=\frac{{\sqrt 4}}{{\sqrt 9}}=\frac{2}{3}\hfill \\\sqrt {0.016} *\sqrt {10}=\sqrt {0.016*10}=\sqrt {0.16}= 0.4 \hfill \\ \end{gathered} \]$