Find all solutions to the following equation on the interval 0 a 2π (in radians). 2 cos² (a) + cos(a) - 1 = 0 a = Give y

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answerhappygod
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Find all solutions to the following equation on the interval 0 a 2π (in radians). 2 cos² (a) + cos(a) - 1 = 0 a = Give y

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Find all solutions to the following equation on the interval 0 a 2π (in radians). 2 cos² (a) + cos(a) - 1 = 0 a = Give your answers as exact values in a list, with commas between your answers. Type "DNE" (Does Not Exist) if there are no solutions. Do not use any trigonometric functions on a calculator or other technology, as they will not provide you with exact answers. Decimal approximations and answers given in degrees will be marked wrong.
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