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Simplifying 2sin(2x) + 5cos(2x) = 0 Remove parenthesis around (2x) 2ins * 2x + 5cos(2x) = 0 Reorder the terms for easier multiplication: 2 * 2ins * x + 5cos(2x) = 0 Multiply 2 * 2 4ins * x + 5cos(2x) = 0 Multiply ins * x 4insx + 5cos(2x) = 0 Remove parenthesis around (2x) 4insx + 5cos * 2x = 0 Reorder the terms for easier multiplication: 4insx + 5 * 2cos * x = 0 Multiply 5 * 2 4insx + 10cos * x = 0 Multiply cos * x 4insx + 10cosx = 0 Reorder the terms: 10cosx + 4insx = 0 Solving 10cosx + 4insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-4insx' to each side of the equation. 10cosx + 4insx + -4insx = 0 + -4insx Combine like terms: 4insx + -4insx = 0 10cosx + 0 = 0 + -4insx 10cosx = 0 + -4insx Remove the zero: 10cosx = -4insx Divide each side by '10osx'. c = -0.4ino-1 Simplifying c = -0.4ino-1
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