Question

помогите решить
2cos (2x+p/3)<1/2

Answer 1

Решение
2cos ( 2x + пи/3) <= 1
cos ( 2x + пи/3) <= 1/2
пи/3 +2пи*n <= 2x + пи/3<= 5пи/3+2пи*n
2пи*n <= 2x <= 4пи/3+2пи*n
пи*n <= x <= 2пи/3+пи*n

Удачи тебе!)

Answer 2

2cos ( 2x + пи/3) <= 1

cos ( 2x + пи/3) <= 1/2

пи/3 +2пи*n <= 2x + пи/3<= 5пи/3+2пи*n

2пи*n <= 2x <= 4пи/3+2пи*n

пи*n <= x <= 2пи/3+пи*n