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Simplifying cos2b + -1sin2b = 2cos2b + -1 Reorder the terms: bcos2 + -1bin2s = -1 + 2bcos2 Solving bcos2 + -1bin2s = -1 + 2bcos2 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-2bcos2' to each side of the equation. bcos2 + -2bcos2 + -1bin2s = -1 + 2bcos2 + -2bcos2 Combine like terms: bcos2 + -2bcos2 = -1bcos2 -1bcos2 + -1bin2s = -1 + 2bcos2 + -2bcos2 Combine like terms: 2bcos2 + -2bcos2 = 0 -1bcos2 + -1bin2s = -1 + 0 -1bcos2 + -1bin2s = -1 Reorder the terms: 1 + -1bcos2 + -1bin2s = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -1bcos2 + -1bin2s = 0 The solution to this equation could not be determined.
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