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Simplifying 2cos(2x + -4) = 1296 Reorder the terms: 2cos(-4 + 2x) = 1296 (-4 * 2cos + 2x * 2cos) = 1296 (-8cos + 4cosx) = 1296 Solving -8cos + 4cosx = 1296 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: -1296 + -8cos + 4cosx = 1296 + -1296 Combine like terms: 1296 + -1296 = 0 -1296 + -8cos + 4cosx = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-324 + -2cos + cosx) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-324 + -2cos + cosx)' equal to zero and attempt to solve: Simplifying -324 + -2cos + cosx = 0 Solving -324 + -2cos + cosx = 0 Move all terms containing c to the left, all other terms to the right. Add '324' to each side of the equation. -324 + -2cos + 324 + cosx = 0 + 324 Reorder the terms: -324 + 324 + -2cos + cosx = 0 + 324 Combine like terms: -324 + 324 = 0 0 + -2cos + cosx = 0 + 324 -2cos + cosx = 0 + 324 Combine like terms: 0 + 324 = 324 -2cos + cosx = 324 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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