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Cos²x + cos² y + cos²z + cos²t=4/3 ​

User NewestUser
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The equation cos²x + cos²y + cos²z + cos²t = 4/3 represents a relationship between the cosine of four different angles (x, y, z, and t). However, without additional information or constraints, it is not possible to determine the specific values of x, y, z, and t that satisfy this equation.
User Ozh
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