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Simplifying 4cos2(x) + 5 = 6 Multiply cos2 * x 4cos2x + 5 = 6 Reorder the terms: 5 + 4cos2x = 6 Solving 5 + 4cos2x = 6 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4cos2x = 6 + -5 Combine like terms: 5 + -5 = 0 0 + 4cos2x = 6 + -5 4cos2x = 6 + -5 Combine like terms: 6 + -5 = 1 4cos2x = 1 Divide each side by '4os2x'. c = 0.25o-1s-2x-1 Simplifying c = 0.25o-1s-2x-1
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