Решите данные неравенства
2) cos(x/3)>√3/2, (x/3)∈(-π/6 +2πk; π/6 +2πk), k∈Z x∈(-π/2+6πk; π/2+6πk), k∈Z 3) 2cosx -√3≤0, 2cosx≤√3, cosx≤(√3/2), x∈[π/6 +2πk; 11π/6 +2πk], k∈Z