Сравните : 7√1/7 и 1/2 √20
Ответ: \sqrt{5}" alt="\sqrt{7}>\sqrt{5}" align="absmiddle" class="latex-formula">
1/2*sqrt(4*5)=1/2*2sqrt(5)=sqrt(5)
7*sqrt(1/7)=sqrt(7)
sqrt(7)>sqrt(5)