$\sin(\cot^{-1}(\tan(\cos^{-1}x)))$ નું મૂલ્ય કેટલું થાય?

  • A
    $x$
  • B
    $\frac{x}{2}$
  • C
    $2x$
  • D
    આમાંથી કોઈ નહીં

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જો $\sec ^{-1} \frac{x}{a}-\sec ^{-1} \frac{x}{b}=\sec ^{-1} b-\sec ^{-1} a$ હોય,તો $x$ ની કિંમત શોધો.

જો $y = \sin^{-1}\left(\frac{19}{20}x\right) + \cos^{-1}\left(\frac{19}{20}x\right)$ હોય,તો $\frac{dy}{dx} = $

જો $\tan^{-1} (x+ 2)+ \tan^{- 1}( x -2)= \tan^{-1} (\frac{1}{2})$ હોય,તો $x$ ની કિંમત(ઓ)નો સરવાળો કેટલો થાય?

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