Question

Вычислить : √81*49 ; √0.3*120 ; √(-17)2 ;

Answer 1

1)9*7=63
2)√36=6
3)17
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Answer 2

$\sqrt{81*49}= \sqrt{3969}=63$
$\sqrt{0,3*120}= \sqrt{36}=6$
$(\sqrt{-17})^2=17$