$\cos ^{-1}\left(-\frac{1}{\sqrt{2}}\right)$ નું મુખ્ય મૂલ્ય શોધો.

  • A
    $\frac{2 \pi}{3}$
  • B
    $\frac{5 \pi}{6}$
  • C
    $\frac{3 \pi}{4}$
  • D
    $\frac{3 \pi}{2}$

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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?

ત્રિકોણમિતીય સમીકરણ $\sin ^{-1} x = 2 \sin ^{-1} a$ નો ઉકેલ મળે છે

$\tan ^{-1}\left(\tan \frac{31 \pi}{6}\right)=$ . . . . . . .

$\sin \left[2 \cos ^{-1} \frac{\sqrt{5}}{3}\right]$ નું મૂલ્ય શોધો.

$\sin ^{-1}\left(-\frac{1}{2}\right)$ નું મુખ્ય મૂલ્ય શોધો.

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