જો કોઈ $\alpha, \beta$ માટે $\alpha \leq \beta$ અને $\alpha+\beta=8$ હોય,અને $\sec^2(\tan^{-1} \alpha) + \operatorname{cosec}^2(\cot^{-1} \beta) = 36$ હોય,તો $\alpha^2+\beta$ ની કિંમત . . . . . . છે.

  • A
    $15$
  • B
    $14$
  • C
    $13$
  • D
    $20$

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ધારો કે $\tan ^{-1}(x) \in\left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$,$x \in R$ માટે. તો સમીકરણ $\sqrt{1+\cos (2 x)}=\sqrt{2} \tan ^{-1}(\tan x)$ ના ગણ $\left(-\frac{3 \pi}{2},-\frac{\pi}{2}\right) \cup\left(-\frac{\pi}{2}, \frac{\pi}{2}\right) \cup\left(\frac{\pi}{2}, \frac{3 \pi}{2}\right)$ માં વાસ્તવિક ઉકેલોની સંખ્યા કેટલી થાય?

જો $u = \tan^{-1} \left( \frac{\sqrt{1 + x^2} - 1}{x} \right)$ અને $v = 2 \tan^{-1} x$ હોય,તો $\frac{du}{dv}$ ની કિંમત શોધો.

સાબિત કરો કે $\sin ^{-1} \frac{12}{13}+\cos ^{-1} \frac{4}{5}+\tan ^{-1} \frac{63}{16}=\pi$

$\sin ^{-1}(\sin 100) + \cos ^{-1}(\cos 100) + \tan ^{-1}(\tan 100) + \cot ^{-1}(\cot 100)$ ની કિંમત શું થાય?

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જો $a^2+b^2+c^2=r^2$ હોય,તો $\tan ^{-1}\left(\frac{a b}{c r}\right)+\tan ^{-1}\left(\frac{b c}{a r}\right)+\tan ^{-1}\left(\frac{c a}{b r}\right)$ નું મૂલ્ય શોધો.

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