Question

Помогите, пожалуйста, с корнями!!!

Answer 1

$cfrac{ sqrt{a}- sqrt{c} }{ sqrt{a} + 0.6 }=cfrac{ sqrt{0.81}- sqrt{1.44} }{ sqrt{0.81} +0.6 }=cfrac{0.9- 1.2 }{0.9 + 0.6 }= cfrac{-0.3}{1.5}=- cfrac{1}{5} \ \ \ cfrac{ sqrt{x}+3 }{ sqrt{c} + sqrt{x} } = cfrac{ sqrt{ frac{100}{9} } +3 }{ sqrt{4} + sqrt{ frac{100}{9} } } = cfrac{ frac{10}{3}+3 } {2+ frac{10}{3} }= cfrac{ frac{19}{3} } { frac{16}{3} } =cfrac{19}{3}* cfrac{3}{16} =cfrac{19}{16}$