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Cos x =sin x [0,2pi) find all solutions in the interval .

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There are several good and valid ways in which to solve this equation.  One would be to divide both sides of the equation by cos x, which results in the new equation tan x = 1.  Solutions in [0,2pi) of this include pi/4 (45 degrees).  Can you find other solutions in [0,2pi)? 
User Jesan Fafon
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