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Simplifying Cos2x + -6cosx + 1 = 0 Reorder the terms: 1 + -6cosx + os2xC = 0 Solving 1 + -6cosx + os2xC = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -6cosx + -1 + os2xC = 0 + -1 Reorder the terms: 1 + -1 + -6cosx + os2xC = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -6cosx + os2xC = 0 + -1 -6cosx + os2xC = 0 + -1 Combine like terms: 0 + -1 = -1 -6cosx + os2xC = -1 Add '-1os2xC' to each side of the equation. -6cosx + os2xC + -1os2xC = -1 + -1os2xC Combine like terms: os2xC + -1os2xC = 0 -6cosx + 0 = -1 + -1os2xC -6cosx = -1 + -1os2xC Divide each side by '-6osx'. c = 0.1666666667o-1s-1x-1 + 0.1666666667sC Simplifying c = 0.1666666667o-1s-1x-1 + 0.1666666667sC
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