1)корень из3*tg(3x+п/6)< 1 и 2) система х+y=п sinx+siny=1

1
tg(3x+π/6)<1/√3
-π/2+πn<3x+π/6<π/6+πn,n∈z
-2π/3+πn<3x<πn,n∈z
x∈(-2π/9+πn/3;πn/3,n∈z)
2
x=π-y
sin(π-y)+siny=1
siny+siny=1
2siny=1
siny=1/2
y=π/6
x=π-π/6=5π/6