Хелп

Sin (x+pi/4) < = 1/2

Решение

Sin (x+π/4) ≤ 1/2

- π - arcsin (1/2) + 2πn ≤ x + π/4 ≤ arcsin (1/2) + 2πn, n∈Z

- π - π/6 + 2πn ≤ x + π/4 ≤ π/6 + 2πn, n ∈Z

- 7π/6 + 2πn ≤ x + π/4 ≤ π/6 + 2πn, n ∈Z

- 7π/6 - π/4 + 2πn ≤ x ≤ π/6 - π/4 + 2πn, n ∈Z

- 17π/12 + 2πn ≤ x ≤ - π/12 + 2πn, n∈Z