Question

tính

1\(\left(5\sqrt{3}+3\sqrt{5}\right):\sqrt{15}\)

2\(\left(2\sqrt{3}-3\right):5\sqrt{3}\)

3\(\left(2\sqrt{18}-3\sqrt{8}+6\right):\sqrt{2}\)

4\(\sqrt{27\left(1-\sqrt{3}\right)^2}:3\sqrt{15}\)

5\(\dfrac{a-\sqrt{b}}{\sqrt{b}}:\dfrac{\sqrt{b}}{a+\sqrt{b}}\)

Answer 1

\(\left(1\right)=\sqrt{5}+\sqrt{3}\)

(2)=0,2=1/5

(3)=\(3\sqrt{2}\)

(4)=0,1678590144....

(5)\(\dfrac{a^2-b}{b}\)