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

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

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જો $\frac{\pi}{2} \le x \le \frac{3\pi}{2}$ હોય,તો $\sin^{-1}(\sin x)$ ની કિંમત શું થાય?

જો $\sin \left(\cot ^{-1}(x+1)\right)=\cos \left(\tan ^{-1} x\right)$ હોય,તો ધન વર્ગમૂળને ધ્યાનમાં લેતા,$x$ ની કિંમત $\qquad$ છે.

$\sin ^{-1}\left(-\frac{1}{2}\right)+\cos ^{-1}\left(\frac{\sqrt{3}}{2}\right)=$ . . . . . . .

સમીકરણ $\sin ^{-1} x+\sin ^{-1} 2 x=\frac{\pi}{3}$ નો ઉકેલ શોધો.

$\sec^{-1}[\sec(-30^o)] = $ ....... $^o$

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