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Simplifying 2cosx + -1x2 = 0 Solving 2cosx + -1x2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add 'x2' to each side of the equation. 2cosx + -1x2 + x2 = 0 + x2 Combine like terms: -1x2 + x2 = 0 2cosx + 0 = 0 + x2 2cosx = 0 + x2 Remove the zero: 2cosx = x2 Divide each side by '2osx'. c = 0.5o-1s-1x Simplifying c = 0.5o-1s-1x
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