Question

Сократить................

Answer 1

1
(√a+√b)/[√(ab)(√b+√a)]=1/√(ab)
2
(√a-√b)(√a+√b)/[$sqrt[4]{a}$(√a+√b)]=(√a-√b)/$sqrt[4]{a}$
3
(∛4+∛a²)/(∛4+∛a²)(∛4-∛a²)=1/(∛4-∛a²)
4
(∛x²+∛(xy)+∛y²)/[(∛x-∛y)(∛x²+∛(xy)+∛y²)]=1/(∛x-∛y)