Question

КВАДРАТНЫЙ КОРЕНЬ РЕШИТЬ ПРИМЕРЫ СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$97) \sqrt{49}*\sqrt{81}-\sqrt{2.25}= \\=7*9-1.5=63-1.5=61.5$$98)\frac{\sqrt{8}}{\sqrt{72}}-0.4= \\=\sqrt{\frac{8}{72}} =\frac{1}{3}-\frac{4}{10}=\\=\frac{10-12}{30}=-\frac{1}{15}$$99)\sqrt{128}=\sqrt{2^6*2}=2^3\sqrt{2}=8\sqrt{2}\\ 100) =\sqrt{\frac{81}{3*25}}=\frac{9}{5}* \sqrt{\frac{1}{3}}=\\ =1.8 \sqrt{\frac{1}{3}}$