Mathematics

Mathematics

Problem

The number of points where f(x)=[sin⁡x−cos⁡x]f(x) = [\sin x - \cos x] is not continuous in [0,2π][0, 2\pi] are (where [⋅][\cdot] denotes the greatest integer function) - (A) 6 (B) 5 (C) 7 (D) 4

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