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Simplifying cos(4x) + (4cos(2X)) = 8(cos4(x)) + -3 Remove parenthesis around (4x) cos * 4x + (4cos(2X)) = 8(cos4(x)) + -3 Reorder the terms for easier multiplication: 4cos * x + (4cos(2X)) = 8(cos4(x)) + -3 Multiply cos * x 4cosx + (4cos(2X)) = 8(cos4(x)) + -3 Remove parenthesis around (2X) 4cosx + (4cos * 2X) = 8(cos4(x)) + -3 Reorder the terms for easier multiplication: 4cosx + (4 * 2cos * X) = 8(cos4(x)) + -3 Multiply 4 * 2 4cosx + (8cos * X) = 8(cos4(x)) + -3 Multiply cos * X 4cosx + (8cosX) = 8(cos4(x)) + -3 Reorder the terms: (8cosX) + 4cosx = 8(cos4(x)) + -3 Multiply cos4 * x (8cosX) + 4cosx = 8(cos4x) + -3 Reorder the terms: (8cosX) + 4cosx = -3 + 8cos4x Solving (8cosX) + 4cosx = -3 + 8cos4x Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-8cos4x' to each side of the equation. (8cosX) + 4cosx + -8cos4x = -3 + 8cos4x + -8cos4x Combine like terms: 8cos4x + -8cos4x = 0 (8cosX) + 4cosx + -8cos4x = -3 + 0 (8cosX) + 4cosx + -8cos4x = -3 Reorder the terms: 3 + (8cosX) + 4cosx + -8cos4x = -3 + 3 Combine like terms: -3 + 3 = 0 3 + (8cosX) + 4cosx + -8cos4x = 0 The solution to this equation could not be determined.
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