Q.The number of discontinuities of $f(x)=\lfloor \sin x \rfloor + \lfloor \cos x \rfloor$ in $[0,2\pi]$ is

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Q.The number of discontinuities of f(x)=⌊sin⁡x⌋+⌊cos⁡x⌋f(x)=\lfloor \sin x \rfloor + \lfloor \cos x \rfloorf(x)=⌊sinx⌋+⌊cosx⌋ in [0,2π][0,2\pi][0,2π] is