Sin(п/3-2x)cos(п/3-2x) или= -корень3/4 - вопрос №5748977323234 от isya1991 25.09.2022 13:21

Question

Математика: Sin(п/3-2x)cos(п/3-2x) или= -корень3/4

isya1991 · Answer

1/2sin(2π/3-4x)≥-√3/4sin(2π/3-4x)≥-√3/2sin(4x-2π/3)≤√3/22π/3+2πn≤4x-2π/3≤7π/3+2πn4π/3+2πn≤4x≤3π+2πnπ/3+πn/2≤x≤3π/4+πn/2,n∈z...

Sin(п/3-2x)cos(п/3-2x) > или= -корень3/4