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Simplifying cos(6x) * cos(5x) + sin(6x) * sin(5x) = 0 Remove parenthesis around (6x) cos * 6x * cos(5x) + sin(6x) * sin(5x) = 0 Remove parenthesis around (5x) cos * 6x * cos * 5x + sin(6x) * sin(5x) = 0 Reorder the terms for easier multiplication: 6 * 5cos * x * cos * x + sin(6x) * sin(5x) = 0 Multiply 6 * 5 30cos * x * cos * x + sin(6x) * sin(5x) = 0 Multiply cos * x 30cosx * cos * x + sin(6x) * sin(5x) = 0 Multiply cosx * cos 30c2o2s2x * x + sin(6x) * sin(5x) = 0 Multiply c2o2s2x * x 30c2o2s2x2 + sin(6x) * sin(5x) = 0 Remove parenthesis around (6x) 30c2o2s2x2 + ins * 6x * sin(5x) = 0 Remove parenthesis around (5x) 30c2o2s2x2 + ins * 6x * ins * 5x = 0 Reorder the terms for easier multiplication: 30c2o2s2x2 + 6 * 5ins * x * ins * x = 0 Multiply 6 * 5 30c2o2s2x2 + 30ins * x * ins * x = 0 Multiply ins * x 30c2o2s2x2 + 30insx * ins * x = 0 Multiply insx * ins 30c2o2s2x2 + 30i2n2s2x * x = 0 Multiply i2n2s2x * x 30c2o2s2x2 + 30i2n2s2x2 = 0 Solving 30c2o2s2x2 + 30i2n2s2x2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-30i2n2s2x2' to each side of the equation. 30c2o2s2x2 + 30i2n2s2x2 + -30i2n2s2x2 = 0 + -30i2n2s2x2 Combine like terms: 30i2n2s2x2 + -30i2n2s2x2 = 0 30c2o2s2x2 + 0 = 0 + -30i2n2s2x2 30c2o2s2x2 = 0 + -30i2n2s2x2 Remove the zero: 30c2o2s2x2 = -30i2n2s2x2 Divide each side by '30o2s2x2'. c2 = -1i2n2o-2 Simplifying c2 = -1i2n2o-2 Combine like terms: -1i2n2o-2 + i2n2o-2 = 0 c2 + i2n2o-2 = 0 The solution to this equation could not be determined.
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