$\cos ^{-1}\left(-\frac{1}{\sqrt{2}}\right)$ 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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ધારો કે વિધેય $g: (-\infty, \infty) \rightarrow \left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$ એ $g(u) = 2 \tan^{-1}(e^u) - \frac{\pi}{2}$ દ્વારા આપવામાં આવેલ છે. તો,$g$ એ

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