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Simplifying 3cos(2x) + sin(x) = 0 Remove parenthesis around (2x) 3cos * 2x + sin(x) = 0 Reorder the terms for easier multiplication: 3 * 2cos * x + sin(x) = 0 Multiply 3 * 2 6cos * x + sin(x) = 0 Multiply cos * x 6cosx + sin(x) = 0 Multiply ins * x 6cosx + insx = 0 Solving 6cosx + insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1insx' to each side of the equation. 6cosx + insx + -1insx = 0 + -1insx Combine like terms: insx + -1insx = 0 6cosx + 0 = 0 + -1insx 6cosx = 0 + -1insx Remove the zero: 6cosx = -1insx Divide each side by '6osx'. c = -0.1666666667ino-1 Simplifying c = -0.1666666667ino-1
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