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Simplifying cos(3x + -2) = -0.777 Reorder the terms: cos(-2 + 3x) = -0.777 (-2 * cos + 3x * cos) = -0.777 (-2cos + 3cosx) = -0.777 Solving -2cos + 3cosx = -0.777 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: 0.777 + -2cos + 3cosx = -0.777 + 0.777 Combine like terms: -0.777 + 0.777 = 0.000 0.777 + -2cos + 3cosx = 0.000 The solution to this equation could not be determined.
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