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Simplifying 2cosx + -4sin2 + 2 = 0 Reorder the terms: 2 + 2cosx + -4in2s = 0 Solving 2 + 2cosx + -4in2s = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + 2cosx + -2 + -4in2s = 0 + -2 Reorder the terms: 2 + -2 + 2cosx + -4in2s = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 2cosx + -4in2s = 0 + -2 2cosx + -4in2s = 0 + -2 Combine like terms: 0 + -2 = -2 2cosx + -4in2s = -2 Add '4in2s' to each side of the equation. 2cosx + -4in2s + 4in2s = -2 + 4in2s Combine like terms: -4in2s + 4in2s = 0 2cosx + 0 = -2 + 4in2s 2cosx = -2 + 4in2s Divide each side by '2osx'. c = -1o-1s-1x-1 + 2in2o-1x-1 Simplifying c = -1o-1s-1x-1 + 2in2o-1x-1 Reorder the terms: c = 2in2o-1x-1 + -1o-1s-1x-1
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