The general solution of $\sin x - \cos x = \sqrt 2 $, for any integer $n$ is

  • A

    $n\pi $

  • B

    $2n\pi + \frac{{3\pi }}{4}$

  • C

    $2n\pi $

  • D

    $(2n + 1)\,\pi $

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  • [JEE MAIN 2018]