Решите неравенство [latex]4cos^{2} 2x \geq 3[/latex]

2(1+cos4x)≥3 2cos4x≥1 cos4x≥1/2 -π/3+2πn≤4x≤π/3+2πn,n∈z x∈[-π/12+πn/2;π/12+πn/2,n∈z}