Use an identity to solve the following equation on the interval [0,2r). 2 cos x- sin x-1=0 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. x=| (Type your answer in radians. Use integers or fractions for any numbers in the expression. Type an exact answer, using x as needed. Use a comma to separate answers as needed.) O B. There is no solution.

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Q: 52 48

A: The solution is: