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Simplifying cos2(X) + -3cosx = 0 Multiply cos2 * X cos2X + -3cosx = 0 Reorder the terms: -3cosx + cos2X = 0 Solving -3cosx + cos2X = 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), 'cos'. cos(-3x + sX) = 0Subproblem 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 '(-3x + sX)' equal to zero and attempt to solve: Simplifying -3x + sX = 0 Reorder the terms: sX + -3x = 0 Solving sX + -3x = 0 Move all terms containing c to the left, all other terms to the right. Add '-1sX' to each side of the equation. sX + -1sX + -3x = 0 + -1sX Combine like terms: sX + -1sX = 0 0 + -3x = 0 + -1sX -3x = 0 + -1sX Remove the zero: -3x = -1sX Add '3x' to each side of the equation. -3x + 3x = -1sX + 3x Combine like terms: -3x + 3x = 0 0 = -1sX + 3x Simplifying 0 = -1sX + 3x 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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