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Simplifying 2cos2(x) + 5cosx = 3 Multiply cos2 * x 2cos2x + 5cosx = 3 Reorder the terms: 5cosx + 2cos2x = 3 Solving 5cosx + 2cos2x = 3 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: -3 + 5cosx + 2cos2x = 3 + -3 Combine like terms: 3 + -3 = 0 -3 + 5cosx + 2cos2x = 0 The solution to this equation could not be determined.
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