$\cot(7.5^{\circ}) + \tan(67.5^{\circ}) - \cot(67.5^{\circ}) - \tan(7.5^{\circ})$ का मान क्या है?

  • A
    एक परिमेय संख्या
  • B
    एक अपरिमेय संख्या
  • C
    $2(3 + 2\sqrt{3})$
  • D
    $2(3 - \sqrt{3})$

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