Найдите значения выражения 


[tex]
[tex]16tg( \alpha - \frac{3 \pi }{2}) -cos(- \pi - \frac{5 \pi }{2} )


\alpha =- \frac{ \pi }{3} [/tex]

16tg(-π/3 - 3π/2) - cos(-π - 5π/2) = -16tg(-11π/6) - cos(-7π/2) = 16tg(π + 5π/6) - cos(4π - π/2) = 16tg(5π/6) - cos(π/2) = -16tg(π/6) - 0 = -16√3/3