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 $x$ ની કિંમત શોધો.

  • A
    $\sqrt{3}$
  • B
    $1$
  • C
    $1/\sqrt{3}$
  • D
    $-1$

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સાબિત કરો કે $3 \cos ^{-1} x = \cos ^{-1} (4 x^{3} - 3 x)$,જ્યાં $x \in [\frac{1}{2}, 1]$.

સાબિત કરો કે $\cos ^{-1} \frac{4}{5} + \cos ^{-1} \frac{12}{13} = \cos ^{-1} \frac{33}{65}$

$\sinh^{-1}\left(\frac{x}{\sqrt{1-x^2}}\right)$ કોના બરાબર છે?

$\operatorname{Tan}^{-1} \left( \frac{\sqrt{8-2 \sqrt{15}}}{\sqrt{15}+1} \right) + \operatorname{Tan}^{-1} \left( \frac{1}{\sqrt{5}} \right) =$

$\tan \left(\sin ^{-1}\left(\frac{3}{5}\right)+\tan ^{-1}\left(\frac{2}{3}\right)\right)$ ની કિંમત શોધો.

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