Question

8класс один ! 100 ! решите рационально и ! ! ! ​

Answer 1

$\frac{\sqrt{1470}*\sqrt{0,361}}{\sqrt{48}} =\sqrt{\frac{1470*0,361}{48}}=\sqrt{\frac{147*10*\frac{361}{1000}}{3*16}}=\sqrt{\frac{49*3*361}{3*16*100}}=\sqrt{\frac{7^{2}*19^{2}}{4^{2}*10^{2}}}=\frac{7*19}{4*10}=\frac{133}{40}=3,325$

Второй

$\frac{\sqrt{1470}*\sqrt{0,361}}{\sqrt{48}} =\sqrt{\frac{1470*0,361}{48}} =\sqrt{\frac{147*10*0,361}{48}}=\sqrt{\frac{3*49*3,61}{3*16}}=\sqrt{\frac{7^{2}*1,9^{2}}{4^{2}}}=\frac{7*1,9}{4}=3,325$