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Solve [tex]sin(2y)=cos(4y) for y, where \\0\leq y \leq 360[/tex]

This one is tricky, I want to try to equate either sin to cos or cos to sin so I can work with only one trig function, but how? I don't see how to start this problem. I know that the period of sin2y is 720deg or 4pi, and the period of cos4y is 8pi or 1440deg.

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# Homework Help: Having trouble getting this trigonometry problem started

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