यदि $\sec ^{-1} \frac{x}{a}-\sec ^{-1} \frac{x}{b}=\sec ^{-1} b-\sec ^{-1} a$ है,तो $x$ का मान ज्ञात कीजिए।

  • A
    $a b$
  • B
    $-a b$
  • C
    $a^2$
  • D
    $b^2$

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Similar Questions

यदि $\tan ^{-1}\left[\frac{1}{1+1 \cdot 2}\right]+\tan ^{-1}\left[\frac{1}{1+2 \cdot 3}\right]+\cdots+\tan ^{-1}\left[\frac{1}{1+n(n+1)}\right]=\tan ^{-1}[x]$ है,तो $x=$

$2 \tan ^{-1} \frac{1}{5}+\sec ^{-1} \frac{5 \sqrt{2}}{7}+2 \tan ^{-1} \frac{1}{8}=$

यदि $\cot^{-1} \alpha + \cot^{-1} \beta = \cot^{-1} x$ है,तो $x = $

यदि $\tan ^{-1}\left(\frac{x}{2}\right)+\tan ^{-1}\left(\frac{y}{2}\right)+\tan ^{-1}\left(\frac{z}{2}\right)=\frac{\pi}{2}$ है,तो $x y+y z+z x=$

सिद्ध कीजिए कि $\sin ^{-1} \frac{8}{17}+\sin ^{-1} \frac{3}{5}=\tan ^{-1} \frac{77}{36}$

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