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Simplifying 0 = 2xcos(x) + -1x Multiply cosx * x 0 = 2cosx2 + -1x Solving 0 = 2cosx2 + -1x Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2cosx2' to each side of the equation. 0 + -2cosx2 = 2cosx2 + -2cosx2 + -1x Remove the zero: -2cosx2 = 2cosx2 + -2cosx2 + -1x Combine like terms: 2cosx2 + -2cosx2 = 0 -2cosx2 = 0 + -1x -2cosx2 = -1x Divide each side by '-2osx2'. c = 0.5o-1s-1x-1 Simplifying c = 0.5o-1s-1x-1
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