$\tan^{-1} \left[ \frac{\sqrt{2}}{\sqrt{3}} \cos \left( 5 \sin^{-1} \frac{1}{\sqrt{2}} \right) \right] = \dots$

  • A
    $-\pi/3$
  • B
    $\pi/3$
  • C
    $-\pi/6$
  • D
    $\pi/6$

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