Вычислите 2cos 3π/4+tg π/3.

\[2\cos\frac{3\pi}{4} + tg\frac{\pi}{3} =\]

\[= 2 \cdot \left( - \frac{\sqrt{2}}{2} \right) + \sqrt{3} =\]

\[= - \sqrt{2} + \sqrt{3} = \sqrt{3} - \sqrt{2}.\]