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Simplifying Cos(2x) + cos(4x) + cos(6x) = -0.5 Remove parenthesis around (2x) osC * 2x + cos(4x) + cos(6x) = -0.5 Reorder the terms for easier multiplication: 2osC * x + cos(4x) + cos(6x) = -0.5 Multiply osC * x 2osxC + cos(4x) + cos(6x) = -0.5 Remove parenthesis around (4x) 2osxC + cos * 4x + cos(6x) = -0.5 Reorder the terms for easier multiplication: 2osxC + 4cos * x + cos(6x) = -0.5 Multiply cos * x 2osxC + 4cosx + cos(6x) = -0.5 Remove parenthesis around (6x) 2osxC + 4cosx + cos * 6x = -0.5 Reorder the terms for easier multiplication: 2osxC + 4cosx + 6cos * x = -0.5 Multiply cos * x 2osxC + 4cosx + 6cosx = -0.5 Reorder the terms: 4cosx + 6cosx + 2osxC = -0.5 Combine like terms: 4cosx + 6cosx = 10cosx 10cosx + 2osxC = -0.5 Solving 10cosx + 2osxC = -0.5 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. 10cosx + 2osxC + -2osxC = -0.5 + -2osxC Combine like terms: 2osxC + -2osxC = 0 10cosx + 0 = -0.5 + -2osxC 10cosx = -0.5 + -2osxC Divide each side by '10osx'. c = -0.05o-1s-1x-1 + -0.2C Simplifying c = -0.05o-1s-1x-1 + -0.2C Reorder the terms: c = -0.2C + -0.05o-1s-1x-1
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