$\sin \left(\cos ^{-1}\left(-\frac{1}{7}\right)+\sin ^{-1}\left(-\frac{1}{7}\right)\right) = $ . . . . . . .

  • A
    $0$
  • B
    $1$
  • C
    $\frac{1}{7}$
  • D
    $-\frac{1}{7}$

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