$\cot ^{-1}\left(\frac{\sqrt{1+x^2}-1}{x}\right) = $ . . . . . .

  • A
    $-\frac{1}{2} \tan ^{-1} x$
  • B
    $\cot ^{-1} x$
  • C
    $\frac{\pi}{2}-\frac{1}{2} \tan ^{-1} x$
  • D
    $\frac{\pi}{2}-\frac{1}{2} \cot ^{-1} x$

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

જો $x$ એ અ-ધન સ્વીકાર્ય કિંમત લેતું હોય,તો $\sin^{-1} x =$

સાબિત કરો કે $\tan ^{-1}\left(\frac{\sqrt{1+x}-\sqrt{1-x}}{\sqrt{1+x}+\sqrt{1-x}}\right)=\frac{\pi}{4}-\frac{1}{2} \cos ^{-1} x$,જ્યાં $-\frac{1}{\sqrt{2}} \leq x \leq 1$.

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$\tan^{-1}\left(\frac{x}{y}\right) - \tan^{-1}\left(\frac{x-y}{x+y}\right)$ નું સાદું રૂપ શું થાય?

$\tan ^{-1}(\cot x)+\cot ^{-1}(\tan x) =$ . . . . . .

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