A (-30,8) that’s the answer
The answer should be 3+3=6
If you see this as <span>cos[2(3x)]
Then what we can do is </span>letting a = 3x to make it easier
Then it will be <span><span>cos2a
Hope this helps a lot</span></span>
There is lack of information so this question cannot be answered until there is more information. Sorry but put all of the information in the question you ask next time.
