मान लीजिए $S_{n} = \cot^{-1} 2 + \cot^{-1} 8 + \cot^{-1} 18 + \cot^{-1} 32 + \dots$ $n$ वें पद तक है। तो $\lim_{n \rightarrow \infty} S_{n}$ है

  • A
    $\frac{\pi}{3}$
  • B
    $\frac{\pi}{4}$
  • C
    $\frac{\pi}{6}$
  • D
    $\frac{\pi}{8}$

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Similar Questions

$2 \tan ^{-1}\left(\frac{1}{3}\right)-\tan ^{-1}\left(\frac{3}{4}\right)=$

$\tan ^{-1}\left(\frac{1}{3}\right)+\tan ^{-1}\left(\frac{1}{5}\right)+\tan ^{-1}\left(\frac{1}{7}\right)+\tan ^{-1}\left(\frac{1}{8}\right)$ का मान है

यदि $2\tan^{-1}(\cos x) = \tan^{-1}(2\csc x)$ है,तो $x =$

$\cos \left[\cos ^{-1}\left(-\frac{1}{7}\right)+\sin ^{-1}\left(-\frac{1}{7}\right)\right]$ का मान ज्ञात कीजिए।

$0 \le x \le 1$ के लिए ${\tan ^{ - 1}}\left( {\frac{{1 - x}}{{1 + x}}} \right)$ के न्यूनतम और अधिकतम मान ज्ञात कीजिए।

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