Solve the Trigonometric Equation sin(2x) = cos(x) After Applying a Trig Identity

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How to solve a trigonometric equation after applying a trig identity.

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This is the only video I could find that shows all solutions, not just the ones over the interval 0 to 360. I also liked the way he showed his work, with out skipping any steps or explanations. Thank you Prof. Redden!

samanthataylor