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Simplifying 4cos3 + 15cosx = 0 Reorder the terms: 15cosx + 4cos3 = 0 Solving 15cosx + 4cos3 = 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(15x + 4s2) = 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 '(15x + 4s2)' equal to zero and attempt to solve: Simplifying 15x + 4s2 = 0 Reorder the terms: 4s2 + 15x = 0 Solving 4s2 + 15x = 0 Move all terms containing c to the left, all other terms to the right. Add '-4s2' to each side of the equation. 4s2 + -4s2 + 15x = 0 + -4s2 Combine like terms: 4s2 + -4s2 = 0 0 + 15x = 0 + -4s2 15x = 0 + -4s2 Remove the zero: 15x = -4s2 Add '-15x' to each side of the equation. 15x + -15x = -4s2 + -15x Combine like terms: 15x + -15x = 0 0 = -4s2 + -15x Simplifying 0 = -4s2 + -15x 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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