Tính

A=\(\dfrac{3\sqrt{2}-2\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\dfrac{\sqrt{15}-\sqrt{5}}{\sqrt{3}-1}\)

Tính

A=\(\sqrt{\left(3-\sqrt{2}\right)^2}-\sqrt{\left(1-\sqrt{2}\right)^2}\)

B=\(\sqrt{\left(\sqrt{5}-1\right)^2}+\sqrt{\left(\sqrt{5}-3\right)^2}\)

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