I got pi over 9 for an answer but I don’t understand how to get the rest of them

π/9, 4π/9, 7π/9    (0 ≤ O <  π)

Step-by-step explanation:

sin 3O - √3 cos 3O = 0

Adding √3 cos 3O  to both sides:

sin 3O =  √3 cos 3O    

Divide both sides by cos 3O:  

sin 3O / cos 3O =   √3

tan 3O =  √3

3O = π/3 ,  4π/3,  7π/3  

So O =  π/9, 4π/9, 7π/9.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.