$\frac{\cos 12^\circ - \sin 12^\circ}{\cos 12^\circ + \sin 12^\circ} + \frac{\sin 147^\circ}{\cos 147^\circ} = $

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    આમાંથી કોઈ નહીં

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