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Simplifying sen2x + 2cosx + -1 = 0 Reorder the terms: -1 + 2cosx + en2sx = 0 Solving -1 + 2cosx + en2sx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 2cosx + 1 + en2sx = 0 + 1 Reorder the terms: -1 + 1 + 2cosx + en2sx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2cosx + en2sx = 0 + 1 2cosx + en2sx = 0 + 1 Combine like terms: 0 + 1 = 1 2cosx + en2sx = 1 Add '-1en2sx' to each side of the equation. 2cosx + en2sx + -1en2sx = 1 + -1en2sx Combine like terms: en2sx + -1en2sx = 0 2cosx + 0 = 1 + -1en2sx 2cosx = 1 + -1en2sx Divide each side by '2osx'. c = 0.5o-1s-1x-1 + -0.5en2o-1 Simplifying c = 0.5o-1s-1x-1 + -0.5en2o-1 Reorder the terms: c = -0.5en2o-1 + 0.5o-1s-1x-1
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