MCQ
$\tan ^{-1} \frac{1}{2}+\tan ^{-1} \frac{2}{11}=\tan ^{-1} a$ तब $a=$ ?
  • A
    $\frac{1}{4}$
  • B
    $\frac{1}{2}$
  • $\frac{3}{4}$
  • D
    1

Answer

Correct option: C.
$\frac{3}{4}$
(C)

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