કિંમત શોધો: ${\tan ^{ - 1}}1 + {\tan ^{ - 1}}2 + {\tan ^{ - 1}}3$

  • A
    $\frac{\pi }{2}$
  • B
    $\frac{\pi }{4}$
  • C
    $0$
  • D
    આમાંથી કોઈ નહીં

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Similar Questions

$x$ ની કઈ કિંમત માટે $\sin \left(\cot ^{-1}(x)\right)=\cos \left(\tan ^{-1}(1+x)\right)$ થાય?

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

$\tan ^{-1}\left(\frac{1}{8}\right)+\tan ^{-1}\left(\frac{1}{2}\right)+\tan ^{-1}\left(\frac{1}{5}\right)$ નું મૂલ્ય શોધો.

જો $y = \sin^{-1}(2x\sqrt{1-x^2})$ હોય અને $-\frac{1}{\sqrt{2}} < x < \frac{1}{\sqrt{2}}$ હોય,તો $\frac{dy}{dx}$ શોધો.

$\sin ^{-1} \frac{4}{5} + 2 \tan ^{-1} \frac{1}{3}$ ની કિંમત શોધો.

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