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Simplifying sen(3x) = cos(4x) + -1cos(2x) Remove parenthesis around (3x) ens * 3x = cos(4x) + -1cos(2x) Reorder the terms for easier multiplication: 3ens * x = cos(4x) + -1cos(2x) Multiply ens * x 3ensx = cos(4x) + -1cos(2x) Remove parenthesis around (4x) 3ensx = cos * 4x + -1cos(2x) Reorder the terms for easier multiplication: 3ensx = 4cos * x + -1cos(2x) Multiply cos * x 3ensx = 4cosx + -1cos(2x) Remove parenthesis around (2x) 3ensx = 4cosx + -1cos * 2x Reorder the terms for easier multiplication: 3ensx = 4cosx + -1 * 2cos * x Multiply -1 * 2 3ensx = 4cosx + -2cos * x Multiply cos * x 3ensx = 4cosx + -2cosx Combine like terms: 4cosx + -2cosx = 2cosx 3ensx = 2cosx Solving 3ensx = 2cosx Solving for variable 'e'. Move all terms containing e to the left, all other terms to the right. Divide each side by '3nsx'. e = 0.6666666667cn-1o Simplifying e = 0.6666666667cn-1o
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