Solve the following equation for 00 ≤ x ≤ 3600 2cosx = sin2 x + 2
2 cos x = 1 - cos2x + 2cos2x + 2cosx - 3 = 0p = cos xp2 + 2p -3 = 0p2 + 3p -p -3 =0p(p+3) - 1(p+3) =0 p = 1 or -3cos x = 1x=0º, 360º
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