જો ${({\tan ^{ - 1}}x)^2} + {({\cot ^{ - 1}}x)^2} = \frac{{5{\pi ^2}}}{8}$ હોય,તો $x$ ની કિંમત શોધો.

  • A
    $-1$
  • B
    $1$
  • C
    $0$
  • D
    આમાંથી કોઈ નહીં

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Similar Questions

$\sin \left[3 \sin ^{-1}(0.4)\right] = \ldots$

નીચેના વિધાનો ધ્યાનમાં લો:
વિધાન $(A)$: જ્યારે $x, y, z$ ધન સંખ્યાઓ હોય, ત્યારે $\operatorname{Tan}^{-1}\left(\sqrt{\frac{x(x+y+z)}{y z}}\right)+\operatorname{Tan}^{-1}\left(\sqrt{\frac{y(x+y+z)}{x z}}\right)+\operatorname{Tan}^{-1}\left(\sqrt{\frac{z(x+y+z)}{x y}}\right) = \pi$
કારણ $(R)$: $\operatorname{Tan}^{-1} a + \operatorname{Tan}^{-1} b = \operatorname{Tan}^{-1}\left(\frac{a+b}{1-ab}\right)$ જો $a > 0$ અને $b > 0$ અને $ab < 1$ હોય.

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

$\tan ^{-1} \frac{1}{3}+\tan ^{-1} \frac{1}{5}+\tan ^{-1} \frac{1}{7}+\tan ^{-1} \frac{1}{8}$ ની કિંમત $ . . . . . . $ છે.

જો $2 \tan^{-1}(\cos x) = \tan^{-1}(\csc^2 x)$ હોય,તો $x =$

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