Question

Calculati:
$\sqrt{{ \sqrt{8}-3 }$² + $\sqrt{(5- \sqrt{18)} }$² + $\sqrt{(7- \sqrt{(50)} }$².

Answer 1

$...\ =|\sqrt8-3|+|5-\sqrt{18}|+|7-\sqrt{50}|=$

$=3-2\sqrt2+5-3\sqrt2+5\sqrt2-7=1$

Am folosit faptul că:
$\sqrt8-3\ \textless \ 0;\ \ 5-\sqrt{18}\ \textgreater \ 0;\ \ 7-\sqrt{50}\ \textless \ 0$