Consider the following:

Using the identity $\sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}$√ab=√a√b, simplify $\frac{\sqrt{33}}{\sqrt{11}}$√33√11.

Simplify the expression $\sqrt{85}\div\sqrt{17}$√85÷√17.

Simplify the expression $\frac{\sqrt{187}}{\sqrt{11}}$√187√11.

Simplify the expression $\sqrt{91}\div\sqrt{7}$√91÷√7.