Question

5/(sqrt(10)*sqrt(14)

Answer 1

5/(sqrt(10)*sqrt(14)=(5*sqrt(10)*sqrt(14))/sqrt(10)=(5sqrt(140))/10=(2sqrt(35)/2=sqrt(35)

Answer 2

Неверно

Answer 3

$frac{5}{sqrt{10}cdot sqrt{14}} = frac{5cdot sqrt{10}cdot sqrt{14}}{10cdot 14} = frac{sqrt{140}}{2cdot 14} =frac{sqrt{4cdot 35}}{2cdot 14} = frac{2sqrt{35}}{2cdot 14} = frac{sqrt{35}}{14}$