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Simplifying 2cos2 + -4cosx = 0 Reorder the terms: -4cosx + 2cos2 = 0 Solving -4cosx + 2cos2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Factor out the Greatest Common Factor (GCF), '2cos'. 2cos(-2x + s) = 0 Ignore the factor 2.Subproblem 1
Set the factor 'cos' equal to zero and attempt to solve: Simplifying cos = 0 Solving cos = 0 Move all terms containing c to the left, all other terms to the right. Simplifying cos = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(-2x + s)' equal to zero and attempt to solve: Simplifying -2x + s = 0 Reorder the terms: s + -2x = 0 Solving s + -2x = 0 Move all terms containing c to the left, all other terms to the right. Add '-1s' to each side of the equation. s + -1s + -2x = 0 + -1s Combine like terms: s + -1s = 0 0 + -2x = 0 + -1s -2x = 0 + -1s Remove the zero: -2x = -1s Add '2x' to each side of the equation. -2x + 2x = -1s + 2x Combine like terms: -2x + 2x = 0 0 = -1s + 2x Simplifying 0 = -1s + 2x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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