જો $\cot(\cos^{-1} x) = \sec(\tan^{-1} \frac{a}{\sqrt{b^2 - a^2}})$ હોય, તો $x$ ની કિંમત શોધો

  • A
    $\frac{b}{\sqrt{2b^2 + a^2}}$
  • B
    $\frac{\sqrt{2b^2 - a^2}}{b}$
  • C
    $\frac{b}{\sqrt{2b^2 - a^2}}$
  • D
    $\frac{\sqrt{2b^2 + a^2}}{b}$

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$(\sin^{-1} x)^3 + (\cos^{-1} x)^3$ ની ન્યૂનતમ અને મહત્તમ કિંમતો શોધો:

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ધારો કે $S_{k} = \sum_{r=1}^{k} \tan^{-1}\left(\frac{6^{r}}{2^{2r+1} + 3^{2r+1}}\right)$. તો $\lim_{k \rightarrow \infty} S_{k}$ ની કિંમત શોધો.

જો $0 \leq x \leq \frac{1}{2}$ હોય,તો $\tan \left[\sin ^{-1}\left\{\frac{x}{\sqrt{2}}+\frac{\sqrt{1-x^{2}}}{\sqrt{2}}\right\}-\sin ^{-1} x\right]$ ની કિંમત શોધો.

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

જો ${\sin ^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + {\sin ^{ - 1}}\left( {\frac{{2b}}{{1 + {b^2}}}} \right) = 2{\tan ^{ - 1}}x,$ હોય,તો $x = $

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