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

  • A
    $1$
  • B
    $-5$
  • C
    $-4$
  • D
    $\frac{1}{2}$

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$\sin ^{-1}(\cos(\sin ^{-1} x)) + \cos ^{-1}(\sin(\cos^{-1} x)) = \text{ . . . . . . }$

જો $\sin^{-1}(x - 2) + \cos^{-1}(x) + \tan^{-1}(x + 2) + \cot^{-1}(x + 4) = \sec^{-1}(\sqrt{k}) - \frac{\pi}{2}$ હોય, તો $\cos(2 \csc^{-1}\sqrt{k - 1}) = \dots$

$2 \tan^{-1} 2x = \sin^{-1} \left( \frac{4x}{1+4x^2} \right)$ સમીકરણનું સમાધાન કરતા $x$ ના તમામ મૂલ્યો કયા અંતરાલમાં આવેલા છે?

જો $\tan^{-1} \frac{a+x}{a} + \tan^{-1} \frac{a-x}{a} = \frac{\pi}{6}$ હોય,તો $x^2 =$

જો $y = \cot^{-1} \left[ \frac{\sqrt{1 + \sin x} + \sqrt{1 - \sin x}}{\sqrt{1 + \sin x} - \sqrt{1 - \sin x}} \right]$ હોય,તો $\frac{dy}{dx} = $

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