Question

упростить
.................​

Answer 1

$\frac{6}{\sqrt{2}-\sqrt{3}}-\frac{4}{\sqrt{2}+\sqrt{3}}=\frac{6(\sqrt{2}+\sqrt{3})}{(\sqrt{2}-\sqrt{3})(\sqrt{2}+\sqrt{3})}-\frac{4(\sqrt{2}-\sqrt{3})}{(\sqrt{2}-\sqrt{3})(\sqrt{2}+\sqrt{3})}=\\\\=\frac{6\sqrt{2}+6\sqrt{3}-4\sqrt{2}+4\sqrt{3}}{(\sqrt{2})^2-(\sqrt{3})^2}=\frac{2\sqrt{2}+10\sqrt{3}}{2-3}= \frac{2\sqrt{2}+10\sqrt{3}}{-1}=-2\sqrt{2}-10\sqrt{3}$

Answer 2

Решение. Пометки не переписывать.