1) 3sin(π/6) +√3cos(π/6) - tg(π/4)=3*(1/2) + √3*(√3/2) - 1 = =1.5 +1.5 -1=2 2) 9^(x+2)≤27 (3²)^(x+2)≤3³ 2(x+2)≤3 x+2≤1.5 x≤1.5-2 x≤-0.5