653 . 1,2 . решите пожалуйста

1
cos(x/3+2)≥1/2
-π/3+2πn≤x/3+2≤π/3+2πn
-π/3-2+2πn≤x/3≤π/3 -2+2πn
-π-6+6πn≤x≤π-6+6πn
x∈[-π-6+6πn;π-6+6πn,n∈z]
2
sin(x/4 -3)lt;-√2/2
5π/4+2πnlt;x/4-3lt;7π/4+2πn
3+5π/4+2πnlt;x/4lt;3+7π/4+2πn
12+5π+8πnlt;xlt;12+7π+8πn
x∈(12+5π+8πn;12+7π+8πn,n∈z)