SOLUTION: sinx+sin2x=1,then cos2x+xos4x=?

SOLUTION: sinx+sin2x=1,then cos2x+xos4x=?

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Question 484937: sinx+sin2x=1,then cos2x+xos4x=?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Is that sin(2x), or ?

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