Вычислите:
А)
[tex]5 tg60 {}^{0} - 4 \cos30 {}^{0} + 4 \sin30 {}^{0} [/tex]
Б)
[tex]6 \cos \frac{\pi}{6} + \ctg \frac{\pi }{6} - 2 \sin \frac{\pi}{3} - 8 \sin \frac{\pi}{3} [/tex]
​