$\cos ^{ - 1}\left( \frac{3 + 5\cos x}{5 + 3\cos x} \right)$ ની કિંમત શું થાય?

  • A
    $\tan ^{ - 1}\left( \frac{1}{2}\tan \frac{x}{2} \right)$
  • B
    $2\tan ^{ - 1}\left( 2\tan \frac{x}{2} \right)$
  • C
    $\frac{1}{2}\tan ^{ - 1}\left( 2\tan \frac{x}{2} \right)$
  • D
    $2\tan ^{ - 1}\left( \frac{1}{2}\tan \frac{x}{2} \right)$

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Similar Questions

$\tan ^{-1}\left(\frac{1}{3}\right)+\tan ^{-1}\left(\frac{1}{5}\right)+\tan ^{-1}\left(\frac{1}{7}\right)+\tan ^{-1}\left(\frac{1}{8}\right)$ નું મૂલ્ય શોધો.

જો $\cos ^{-1} x - \cos ^{-1} \frac{y}{2} = \alpha$,જ્યાં $-1 \leq x \leq 1, -2 \leq y \leq 2, x \leq \frac{y}{2}$ હોય,તો તમામ $x, y$ માટે $4x^2 - 4xy \cos \alpha + y^2$ ની કિંમત શું થાય?

$\tan \left[ \cos^{-1} \frac{4}{5} + \tan^{-1} \frac{2}{3} \right] =$

જો $\cos^{-1} \frac{3}{5} - \sin^{-1} \frac{4}{5} = \cos^{-1} x$ હોય,તો $x = $

જો $a < \frac{1}{32}$ હોય,તો $(\sin^{-1} x)^3 + (\cos^{-1} x)^3 = a\pi^3$ ના ઉકેલોની સંખ્યા કેટલી થાય?

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