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Simplifying -1cos2x = -2cos2 + -1sin2x + 1 Reorder the terms: -1cos2x = 1 + -2cos2 + -1in2sx Solving -1cos2x = 1 + -2cos2 + -1in2sx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2cos2' to each side of the equation. 2cos2 + -1cos2x = 1 + -2cos2 + 2cos2 + -1in2sx Combine like terms: -2cos2 + 2cos2 = 0 2cos2 + -1cos2x = 1 + 0 + -1in2sx 2cos2 + -1cos2x = 1 + -1in2sx Reorder the terms: -1 + 2cos2 + -1cos2x + in2sx = 1 + -1in2sx + -1 + in2sx Reorder the terms: -1 + 2cos2 + -1cos2x + in2sx = 1 + -1 + -1in2sx + in2sx Combine like terms: 1 + -1 = 0 -1 + 2cos2 + -1cos2x + in2sx = 0 + -1in2sx + in2sx -1 + 2cos2 + -1cos2x + in2sx = -1in2sx + in2sx Combine like terms: -1in2sx + in2sx = 0 -1 + 2cos2 + -1cos2x + in2sx = 0 The solution to this equation could not be determined.
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