જો $\sin^{-1} x = \theta + \beta$ અને $\sin^{-1} y = \theta - \beta$ હોય,તો $1 + xy = $

  • A
    $\sin^2 \theta + \sin^2 \beta$
  • B
    $\sin^2 \theta + \cos^2 \beta$
  • C
    $\cos^2 \theta + \cos^2 \beta$
  • D
    $\cos^2 \theta + \sin^2 \beta$

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જો $y = \tan^{-1} \sqrt{\frac{1 + \cos x}{1 - \cos x}}$ હોય,તો $\frac{dy}{dx}$ શું થાય?

જો $\sin ^{-1} x - \cos ^{-1} x = \frac{\pi}{6}$ હોય, તો $x$ ની કિંમત શોધો.

જો $3{\sin ^{ - 1}}\frac{{2x}}{{1 + {x^2}}} - 4{\cos ^{ - 1}}\frac{{1 - {x^2}}}{{1 + {x^2}}} + 2{\tan ^{ - 1}}\frac{{2x}}{{1 - {x^2}}} = \frac{\pi }{3}$ હોય,તો $x$ =

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$\cot ^{-1}\left(\frac{\sqrt{1+x^2}-1}{x}\right) = $ . . . . . .

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