જો $\operatorname{Tanh}^{-1} x = \operatorname{Coth}^{-1} y = \log \sqrt{5}$ હોય,તો $\operatorname{Tan}^{-1}(xy) = $

  • A
    $\frac{\pi}{4}$
  • B
    $\frac{\pi}{3}$
  • C
    $\frac{\pi}{6}$
  • D
    $\frac{3\pi}{4}$

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કિંમત શોધો: $\cos^{-1}\sqrt{1-x} + \sin^{-1}\sqrt{1-x}$

$\sin^{-1}\left(\sin \frac{5\pi}{3}\right)$ ની કિંમત . . . . . . બરાબર છે.

$\tan ^{-1}(-1)$ નું મુખ્ય મૂલ્ય શોધો.

વિધેય $f: [-1, 1] \to R$ ધ્યાનમાં લો જ્યાં $f(x) = \alpha_1 \sin^{-1} x + \alpha_3 (\sin^{-1} x)^3 + \dots + \alpha_{2n+1} (\sin^{-1} x)^{2n+1} - \cot^{-1} x$,જ્યાં $\alpha_i$ ધન અચળાંકો છે અને $n \in N < 100$ છે,તો $f(x)$ શું છે?

અસમતા $(\cot^{-1}x)^2 - 5\cot^{-1}x + 6 > 0$ નો ઉકેલ શોધો:

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