Tg (2x+p/3)>- корень из -3/3
Tg (2x+p/3)>- √3/3 -arctg√3/3 + πk < 2x + π/3 < π/2 + πk , k ∈ Z<br>-π/6+ πk < 2x + π/3 < π/2 + πk , k ∈ Z<br>-π/6 - π/3 +πk < x < - π/ 3 + π/2 + πk , k ∈ Z<br>-π/2 + πk < x < π/6 + πk , k ∈Z