MCQ
The distance between the points $P(2, \tan \alpha)$ and $Q(3,0)$ is
  • A
    $\sec \alpha$
  • B
    $\operatorname{cosec} \alpha$
  • $|\sec \alpha|$
  • D
    $|\operatorname{cosec} \alpha|$

Answer

Correct option: C.
$|\sec \alpha|$
(C)$|\sec \alpha|$
$P Q=\sqrt{(2-3)^2+(\tan \alpha-0)^2}=\sqrt{1+\tan ^2 \alpha}=\sqrt{\sec ^2} \alpha=|\sec \alpha|\qquad\left[\because \sqrt{x^2}=|x|\right]$

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