यदि $x = {\sin ^{ - 1}}(\sin 10)$ और $y = {\cos ^{ - 1}}(\cos 10)$ है,तो $y - x$ का मान ज्ञात कीजिए।

  • A
    $\pi $
  • B
    $7\pi $
  • C
    $0$
  • D
    $10$

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