यदि $\sec A = a + \left(\frac{1}{4a}\right)$ है,तो $\sec A + \tan A =$

  • A
    $2a$ या $\frac{1}{2a}$
  • B
    $a$ या $\frac{1}{a}$
  • C
    $2a$ या $\frac{1}{a}$
  • D
    $a$ या $\frac{1}{2a}$

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$\text{cosec } A - 2 \cot 2A \cos A = $

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