$\tan^{-1} \frac{1}{2} + \tan^{-1} \frac{1}{3} = ?$

  • A
    $0$
  • B
    $\pi / 4$
  • C
    $\pi / 2$
  • D
    $\pi$

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Similar Questions

यदि ${\tan ^{ - 1}}\frac{{1 - x}}{{1 + x}} = \frac{1}{2}{\tan ^{ - 1}}x$ है,तो $x = $

सिद्ध कीजिए कि $\tan ^{-1} \sqrt{x} = \frac{1}{2} \cos ^{-1} \left( \frac{1-x}{1+x} \right)$,जहाँ $x \in [0, 1]$ है।

$\tan ^{-1} 2+\tan ^{-1} 3=$

मान ज्ञात कीजिए: $\tan^{-1}\left(\frac{1}{4}\right) + \tan^{-1}\left(\frac{2}{9}\right) = $

श्रेणी $\cot^{-1} 3 + \cot^{-1} 7 + \cot^{-1} 13 + \cot^{-1} 21 + \dots$ के प्रथम $n$ पदों का योग क्या है?

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