Question

Все в корені 36*0.49

Answer 1

$sqrt{36*0.49}= sqrt{6^2*(0.7)^2} =6*0.7=4.2$

Answer 2

$sqrt{36*0.49} = sqrt{14.64} =4.2 \ \ \ sqrt{36*0.49} = sqrt{6^{2}*0.7^{2} } =6*0.7=4.2$