જો $\tan^{-1} (ax) + \tan^{-1} (3x) = \frac{\pi}{4}$, જ્યાં $3ax^2 < 1$, તો $x = \frac{1}{6}$ માટે $a$ ની કિંમત શું છે...

  • A
    $2$
  • B
    $3$
  • C
    $4$
  • D
    $9$

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

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

$\tan \left(\frac{1}{4} \sin ^{-1} \frac{\sqrt{63}}{8}\right)$ ની શક્ય કિંમત કઈ છે?

જો $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ હોય,તો $x$ ની કિંમત શોધો.

$\tan ^{-1} \sqrt{3} - \cot ^{-1}(-\sqrt{3}) = $ . . . . . . .

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