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Simplifying 2cos(2x) + 2((cos2) * x) = 1 + -3sinx Remove parenthesis around (2x) 2cos * 2x + 2((cos2) * x) = 1 + -3sinx Reorder the terms for easier multiplication: 2 * 2cos * x + 2((cos2) * x) = 1 + -3sinx Multiply 2 * 2 4cos * x + 2((cos2) * x) = 1 + -3sinx Multiply cos * x 4cosx + 2((cos2) * x) = 1 + -3sinx Multiply cos2 * x 4cosx + 2(cos2x) = 1 + -3sinx Solving 4cosx + 2cos2x = 1 + -3insx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: -1 + 4cosx + 2cos2x + 3insx = 1 + -3insx + -1 + 3insx Reorder the terms: -1 + 4cosx + 2cos2x + 3insx = 1 + -1 + -3insx + 3insx Combine like terms: 1 + -1 = 0 -1 + 4cosx + 2cos2x + 3insx = 0 + -3insx + 3insx -1 + 4cosx + 2cos2x + 3insx = -3insx + 3insx Combine like terms: -3insx + 3insx = 0 -1 + 4cosx + 2cos2x + 3insx = 0 The solution to this equation could not be determined.
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