यदि $\cot ^{-1}(\alpha)=\cot ^{-1} 2+\cot ^{-1} 8+\cot ^{-1} 18+\cot ^{-1} 32+\ldots$ $100$ पदों तक है,तो $\alpha$ का मान ज्ञात कीजिए।

  • A
    $1.01$
  • B
    $1.00$
  • C
    $1.02$
  • D
    $1.03$

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Similar Questions

यदि $\sin^{-1} x + \sin^{-1} y = \pi/2$ है, तो $x^2$ किसके बराबर है?

यदि $\operatorname{Tan}^{-1}\left[\frac{1}{1+1(2)}\right]+\operatorname{Tan}^{-1}\left[\frac{1}{1+(2)(3)}\right]+\operatorname{Tan}^{-1}\left[\frac{1}{1+(3)(4)}\right]+\cdots+\operatorname{Tan}^{-1}\left[\frac{1}{1+n(n+1)}\right]=\operatorname{Tan}^{-1} \theta$ है,तो $\theta=$

$\tan \left[ {\frac{1}{2}{{\sin }^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + \frac{1}{2}{{\cos }^{ - 1}}\left( {\frac{{1 - {a^2}}}{{1 + {a^2}}}} \right)} \right] = $

मान ज्ञात कीजिए: $\cos(\cos^{-1}(-\frac{1}{2}) + \frac{\pi}{3}) = $

यदि $\tan ^{-1} x+\tan ^{-1} y+\tan ^{-1} z=\frac{\pi}{2}$ है, तो $1-x y-y z-z x$ का मान ज्ञात कीजिए।

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