MCQ
$\tan ^{-1}\left(\frac{1}{4}\right)+\tan ^{-1}\left(\frac{2}{9}\right)$ समान है :
  • A
    $\frac{1}{2} \cos ^{-1}\left(\frac{3}{5}\right)$
  • B
    $\frac{1}{2} \sin ^{-1}\left(\frac{3}{2}\right)$
  • C
    $\frac{1}{2} \tan ^{-1}\left(\frac{3}{5}\right)$
  • $\tan ^{-1}\left(\frac{1}{2}\right)$

Answer

Correct option: D.
$\tan ^{-1}\left(\frac{1}{2}\right)$
(D)

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