1) Calc: Solve the equation 2sin2x° - sin²x° = 0 2) Calc: Solve the equation sinx° + 2 = 3cos2x°  3) Non-Calc: Solve the equation cos2x° = 5cosx° - 3 4) Non-Calc: Solve the equation sin2x° + 6cosx° = 0 5) Non-Calc: Solve cos2x° - 3cosx° + 2 = 0 6) Calc: Solve 5sinx - 4 = 2cos2x 7) Calc: Solve the equation sinx - 2cos2x = 1 8) Calc: Solve 2cos2x° - 5cosx° - 4 = 0

Higher Trig Equations (with Double Angle)

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