જો $\alpha = \lim_{x \rightarrow \pi/4} \frac{\tan^{3} x - \tan x}{\cos(x + \pi/4)}$ અને $\beta = \lim_{x \rightarrow 0} (\cos x)^{\cot x}$ એ સમીકરણ $ax^{2} + bx - 4 = 0$ ના બીજ હોય,તો ક્રમયુક્ત જોડ $(a, b)$ શું થાય?

  • A
    $(1, -3)$
  • B
    $(-1, 3)$
  • C
    $(-1, -3)$
  • D
    $(1, 3)$

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