Question

Pleaseeeeeee help
I literally have no idea what to do

Answer 1

1. x=π/6+πn, 5π/6+πn

2. x=2π/3+2πn, 4π/3+2πn, π+2πn

3. x=5π/6+πn, 5π/3+πn

4. 2+√3

5. -(√(2-√3))/2