Hi guys,

I am stressing myself out coz i dont know how to do this question.

Question being:

2cos(x-30)=1

0^{o}≤X≤360^{o}

I think you start by dividing both sides by 2 to get: cos(x-30)=1/2, but dont know what you do from here!

Thanks in advance

Dan

ps. could you please explain the working so I can understand it a bit better?

Thanks