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

  • A
    $-\frac{3 \pi}{2}$
  • B
    $\frac{\pi}{2}$
  • C
    $-\frac{\pi}{2}$
  • D
    $\frac{3 \pi}{2}$

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Similar Questions

$\tan ^{-1}\left(\frac{x}{y}\right)-\tan ^{-1}\left(\frac{x-y}{x+y}\right)$ (जहाँ,$x, y>0$) का मान क्या है?

यदि $\sin^{-1} \frac{1}{3} + \sin^{-1} \frac{2}{3} = \sin^{-1} x$ है,तो $x$ का मान ज्ञात कीजिए।

यदि $f(n) = \tan \left[\tan ^{-1} \frac{1}{1+2} + \tan ^{-1} \frac{1}{1+6} + \tan ^{-1} \frac{1}{1+12} + \ldots + \tan ^{-1} \frac{1}{1+n(n+1)}\right]$ है, तो $f(2021) =$

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

यदि $\tan^{-1}x + \tan^{-1}y + \tan^{-1}z = \pi$ है,तो $x + y + z$ का मान क्या होगा?

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