Вычислите: 2√3 (tg30°-cos30°)

[latex]\displaystyle 2\sqrt3 (tg30^\circ -cos30^\circ)=2 \sqrt3 ( \frac{\sqrt3}{3}- \frac{\sqrt3}{2})=2\sqrt3 \cdot (- \frac{\sqrt3}{6})=- \frac{3}{3}=-1 [/latex]