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

  • A
    $-1$
  • B
    $0$
  • C
    $1$
  • D
    $\frac{1}{2}$

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Similar Questions

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

જો $\tan ^{-1} 2 x+\tan ^{-1} 3 x=\frac{\pi}{4}$ હોય,તો $x$ ની કિંમત શોધો.

$2 \tan ^{-1} \frac{1}{5}+\sec ^{-1} \frac{5 \sqrt{2}}{7}+2 \tan ^{-1} \frac{1}{8}=$

ધારો કે $\tan ^{-1}\left(\tan \frac{5 \pi}{4}\right) = \alpha$ અને $\tan ^{-1}\left(-\tan \frac{2 \pi}{3}\right) = \beta$. તો:

$\cos \left[\sin ^{-1}\left(\frac{3}{5}\right)+\cos ^{-1}\left(\frac{12}{13}\right)\right]=$

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