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Simplifying 7 + -1sinx + 2cos(2x) = 0 Remove parenthesis around (2x) 7 + -1insx + 2cos * 2x = 0 Reorder the terms for easier multiplication: 7 + -1insx + 2 * 2cos * x = 0 Multiply 2 * 2 7 + -1insx + 4cos * x = 0 Multiply cos * x 7 + -1insx + 4cosx = 0 Reorder the terms: 7 + 4cosx + -1insx = 0 Solving 7 + 4cosx + -1insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + 4cosx + -7 + -1insx = 0 + -7 Reorder the terms: 7 + -7 + 4cosx + -1insx = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4cosx + -1insx = 0 + -7 4cosx + -1insx = 0 + -7 Combine like terms: 0 + -7 = -7 4cosx + -1insx = -7 Add 'insx' to each side of the equation. 4cosx + -1insx + insx = -7 + insx Combine like terms: -1insx + insx = 0 4cosx + 0 = -7 + insx 4cosx = -7 + insx Divide each side by '4osx'. c = -1.75o-1s-1x-1 + 0.25ino-1 Simplifying c = -1.75o-1s-1x-1 + 0.25ino-1 Reorder the terms: c = 0.25ino-1 + -1.75o-1s-1x-1
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