$\cot \left( \sum\limits_{r = 1}^\infty \tan^{-1} \left( \frac{4}{4r^2 + 3} \right) \right)$ નું મૂલ્ય કેટલું થાય?

  • A
    $1$
  • B
    $\frac{1}{2}$
  • C
    $2$
  • D
    $\frac{1}{4}$

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Similar Questions

$\tan \left( \tan^{-1} \frac{1}{2} - \tan^{-1} \frac{1}{3} \right)$ નું મૂલ્ય શું છે?

જો $\cos \left(\cos ^{-1} \frac{\sqrt{3}}{2}+\sin ^{-1} x\right)=1$ હોય,તો $x$ ની કિંમત શોધો.

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

Difficult
View Solution

$\operatorname{Tan}^{-1} \frac{3}{5} + \operatorname{Tan}^{-1} \frac{6}{41} + \operatorname{Tan}^{-1} \frac{9}{191} = $

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

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