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Simplifying F(x) = 1 + -3cos(2x) Multiply F * x xF = 1 + -3cos(2x) Remove parenthesis around (2x) xF = 1 + -3cos * 2x Reorder the terms for easier multiplication: xF = 1 + -3 * 2cos * x Multiply -3 * 2 xF = 1 + -6cos * x Multiply cos * x xF = 1 + -6cosx Solving xF = 1 + -6cosx Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6cosx' to each side of the equation. 6cosx + xF = 1 + -6cosx + 6cosx Combine like terms: -6cosx + 6cosx = 0 6cosx + xF = 1 + 0 6cosx + xF = 1 Reorder the terms: -1 + 6cosx + xF = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + 6cosx + xF = 0 The solution to this equation could not be determined.
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