If $\tan \theta$ and $\cot \theta$ are two distinct roots of the equation $ax^2 + bx + c = 0$,$a \neq 0, b \neq 0$,then

  • A
    $\cos 2\theta = -\frac{2b}{c}$
  • B
    $\sin 2\theta = -\frac{2c}{b}$
  • C
    $\tan 2\theta = \frac{2b}{c}$
  • D
    $\cot 2\theta = \frac{2c}{a}$

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