$\cos \left[ {{\cos }^{ - 1}}\left( {\frac{{ - 1}}{7}} \right) + {{\sin }^{ - 1}}\left( {\frac{{ - 1}}{7}} \right) \right] = $

  • A
    $ - 1/3$
  • B
    $0$
  • C
    $1/3$
  • D
    $4/9$

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Similar Questions

$\tan^{-1}(-2) - \tan^{-1}(3)$ ની કિંમત શોધો.

$\begin{aligned} & 2 \sin ^{-1} x+\sin ^{-1}\left(2 x \sqrt{1-x^2}\right)+3 \cos ^{-1} x \\ & -\cos ^{-1}\left(4 x^3-3 x\right) \text{ની કિંમત શોધો. }\end{aligned}$

ધારો કે $\tan ^{-1} y = \tan ^{-1} x + \tan ^{-1} \left( \frac{2x}{1 - x^2} \right)$,જ્યાં $|x| < \frac{1}{\sqrt{3}}$,તો $y$ ની એક કિંમત શું છે?

સાબિત કરો કે $\tan ^{-1}\left(\frac{2}{11}\right)+\tan ^{-1}\left(\frac{7}{24}\right)=\tan ^{-1}\left(\frac{1}{2}\right)$

જો $2 \operatorname{Tanh}^{-1} x = \operatorname{Sinh}^{-1}\left(\frac{4}{3}\right)$ હોય,તો $\operatorname{Cosh}^{-1}\left(\frac{1}{x}\right) = $

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