Solve 2cos^2(x)−cos(x)−1=0 for all solutions on the interval 0≤ x <2π. Your solutions must be exact, that is, in terms o

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answerhappygod
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Solve 2cos^2(x)−cos(x)−1=0 for all solutions on the interval 0≤ x <2π. Your solutions must be exact, that is, in terms o

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Solve 2cos^2(x)−cos(x)−1=0 for all solutions on theinterval 0≤ x <2π. Your solutions must be exact, that is,in terms of π.x = ?
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