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Simplifying -12sin(2x) + -4x * cos(2x) = 0 Remove parenthesis around (2x) -12ins * 2x + -4x * cos(2x) = 0 Reorder the terms for easier multiplication: -12 * 2ins * x + -4x * cos(2x) = 0 Multiply -12 * 2 -24ins * x + -4x * cos(2x) = 0 Multiply ins * x -24insx + -4x * cos(2x) = 0 Remove parenthesis around (2x) -24insx + -4x * cos * 2x = 0 Reorder the terms for easier multiplication: -24insx + -4 * 2x * cos * x = 0 Multiply -4 * 2 -24insx + -8x * cos * x = 0 Multiply x * cos -24insx + -8cosx * x = 0 Multiply cosx * x -24insx + -8cosx2 = 0 Reorder the terms: -8cosx2 + -24insx = 0 Solving -8cosx2 + -24insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '24insx' to each side of the equation. -8cosx2 + -24insx + 24insx = 0 + 24insx Combine like terms: -24insx + 24insx = 0 -8cosx2 + 0 = 0 + 24insx -8cosx2 = 0 + 24insx Remove the zero: -8cosx2 = 24insx Divide each side by '-8osx2'. c = -3ino-1x-1 Simplifying c = -3ino-1x-1
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