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Simplifying Cos * 2x + cos * 3x + cos * 4x + cos * 5x = 0 Reorder the terms for easier multiplication: 2osC * x + cos * 3x + cos * 4x + cos * 5x = 0 Multiply osC * x 2osxC + cos * 3x + cos * 4x + cos * 5x = 0 Reorder the terms for easier multiplication: 2osxC + 3cos * x + cos * 4x + cos * 5x = 0 Multiply cos * x 2osxC + 3cosx + cos * 4x + cos * 5x = 0 Reorder the terms for easier multiplication: 2osxC + 3cosx + 4cos * x + cos * 5x = 0 Multiply cos * x 2osxC + 3cosx + 4cosx + cos * 5x = 0 Reorder the terms for easier multiplication: 2osxC + 3cosx + 4cosx + 5cos * x = 0 Multiply cos * x 2osxC + 3cosx + 4cosx + 5cosx = 0 Reorder the terms: 3cosx + 4cosx + 5cosx + 2osxC = 0 Combine like terms: 3cosx + 4cosx = 7cosx 7cosx + 5cosx + 2osxC = 0 Combine like terms: 7cosx + 5cosx = 12cosx 12cosx + 2osxC = 0 Solving 12cosx + 2osxC = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2osxC' to each side of the equation. 12cosx + 2osxC + -2osxC = 0 + -2osxC Combine like terms: 2osxC + -2osxC = 0 12cosx + 0 = 0 + -2osxC 12cosx = 0 + -2osxC Remove the zero: 12cosx = -2osxC Divide each side by '12osx'. c = -0.1666666667C Simplifying c = -0.1666666667C
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