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Simplifying cos2x + -1sin2x + 3cosx + -1 = 0 Reorder the terms: -1 + 3cosx + cos2x + -1in2sx = 0 Solving -1 + 3cosx + cos2x + -1in2sx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 3cosx + cos2x + 1 + -1in2sx = 0 + 1 Reorder the terms: -1 + 1 + 3cosx + cos2x + -1in2sx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 3cosx + cos2x + -1in2sx = 0 + 1 3cosx + cos2x + -1in2sx = 0 + 1 Combine like terms: 0 + 1 = 1 3cosx + cos2x + -1in2sx = 1 Add 'in2sx' to each side of the equation. 3cosx + cos2x + -1in2sx + in2sx = 1 + in2sx Combine like terms: -1in2sx + in2sx = 0 3cosx + cos2x + 0 = 1 + in2sx 3cosx + cos2x = 1 + in2sx Reorder the terms: -1 + 3cosx + cos2x + -1in2sx = 1 + in2sx + -1 + -1in2sx Reorder the terms: -1 + 3cosx + cos2x + -1in2sx = 1 + -1 + in2sx + -1in2sx Combine like terms: 1 + -1 = 0 -1 + 3cosx + cos2x + -1in2sx = 0 + in2sx + -1in2sx -1 + 3cosx + cos2x + -1in2sx = in2sx + -1in2sx Combine like terms: in2sx + -1in2sx = 0 -1 + 3cosx + cos2x + -1in2sx = 0 The solution to this equation could not be determined.
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