тригонометричні нерівності

 π/3+2πn<x<2π/3+2πn,n⋲Z

π/6+2πn<x<11π/6+2πn,n⋲Z

 π/6+πn<x<11π/6+πn,n⋲Z

-π/6+2πn<x<π/6+2πn,n⋲Z

−2π/5+2πn≤x≤−2π/3+2πn,n⋲Z

−π/3+2πn≤x≤2π/3+2πn,n⋲Z

−π/3+2πn≤x≤π/3+2πn,n⋲Z

−2π/3+2πn≤x≤2π/3+2πn,n⋲Z

π/2+2πn≤x≤7π/6+2πn,n⋲Z

 π/4+πn≤x≤7π/12+πn,n⋲Z

π/4+2πn<x<7π/12+2πn,n⋲Z

 π/2+2πn<x<7π/6+2πn,n⋲Z

π/6+2πn<x<11π/6+2πn,n⋲Z

 π/24+πn/2<x<11π/24+πn/2,n⋲Z

 π/12+πn<x<11π/12+πn,n⋲Z

π/8+2πn<x<7π/8+2πn,n⋲Z

−3π/4+πn<x<−π/4+πn,n⋲Z

 3π/4+2πn<x<5π/4+2πn,n⋲Z

 −5π/4+2πn<x<−3π/4+2πn,n⋲Z

 −3π/4+2πn<x<−π/4+2πn,n⋲Z

7π/4+6πn<x<25π/4+6πn, n∊Z

π/6+2πn<x<5π/6+2πn, n∊Z

π/4+2πn≤x≤3π/4+2πn,n⋲Z

 3π/4+πn/3≤x≤5π/4+πn/3,n⋲Z