પદાવલિ $ \tan \left(\frac{1}{2} \cos ^{-1} \frac{2}{\sqrt{5}}\right) $ ની કિંમત શોધો.

  • A
    $ 12-\sqrt{5} $
  • B
    $ \sqrt{5}-2 $
  • C
    $ \frac{\sqrt{5}-2}{2} $
  • D
    $ 5-\sqrt{2} $

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Similar Questions

$\frac{\tan ^{-1}(\sqrt{3})-\sec ^{-1}(-2)}{\operatorname{cosec}^{-1}(-\sqrt{2})+\cos ^{-1}\left(\frac{-1}{2}\right)}$ ની કિંમત શોધો.

$\frac{d}{dx} \left( \tan^{-1} \left( \frac{\cos x}{1 + \sin x} \right) \right) =$

$\frac{d}{dx} \left( \cos^{-1} \sqrt{\frac{1 + \cos x}{2}} \right) = $

જો $0 \le x \le 1$ અને $(\sin^{-1} x)^3 + (\cos^{-1} x)^3 = a\pi^3$ હોય, તો $a$ નો વિસ્તાર શોધો.

જો $\alpha$ અને $\beta$ પ્રથમ ચરણમાં એવા ખૂણાઓ હોય કે જેથી $\tan \alpha = \frac{1}{7}$ અને $\sin \beta = \frac{1}{\sqrt{10}}$,તો $\alpha + 2\beta =$ ($^{\circ}$ માં)

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