Question

20 баллов помогите срочно

Answer 1

$frac{ sqrt{2,4}* sqrt{2,1} }{ sqrt{0,56} } = frac{ sqrt{2,4*2,1} }{sqrt{0,56}} = frac{ sqrt{5,04} }{sqrt{0,56}} = sqrt{ frac{5,04}{0,56} } = sqrt{9}=3$