Trigonometry: solve for x: cosx−√3 /4 sin(2x)=0

i got -2/√3 and 2√3 /3.

i don't think i did it right. in advance!

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Question and answers are in the attached picture. you so much in advance.

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?