$\tan ^{-1}\left(\frac{x}{y}\right)-\tan ^{-1}\left(\frac{x-y}{x+y}\right)$ (જ્યાં,$x, y>0$) નું મૂલ્ય શું છે?

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

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Similar Questions

સાબિત કરો કે $\tan ^{-1} x+\tan ^{-1} \frac{2 x}{1-x^{2}}=\tan ^{-1}\left(\frac{3 x-x^{3}}{1-3 x^{2}}\right)$,જ્યાં $|x| < \frac{1}{\sqrt{3}}$.

$\begin{aligned} & \text{જો } \cot \left(\cos ^{-1} x\right)=\sec \left\{\tan ^{-1}\left(\frac{a}{\sqrt{b^2-a^2}}\right)\right\} \\ & b>a, \text{ હોય તો } x= \end{aligned}$

જો $\sin ^{-1}\left(\frac{3}{x}\right)+\sin ^{-1}\left(\frac{4}{x}\right)=\frac{\pi}{2}$ હોય,તો $x$ ની કિંમત શોધો.

જો $\sin ^{-1}\left(\frac{3}{5}\right)+\cos ^{-1}\left(\frac{12}{13}\right)=\sin ^{-1} \alpha$ હોય,તો $\alpha=$

$\tan \left\{\frac{1}{2} \cos ^{-1} \frac{\sqrt{5}}{3}\right\}$ ની કિંમત શોધો.

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