Solve a trigonometric equation using the double angle formulas

The video tutorial explains how to solve a trigonometric equation involving sine functions. It begins by rearranging the equation to bring all terms to one side. The instructor then introduces the double angle formula to simplify the equation further. By factoring out common terms, the equation is solved using the zero product property. The solution is verified using the unit circle, identifying angles where sine and cosine values meet the criteria.

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