MCQ
વિધેય $\cos ^{-1}\left(\frac{2 \sin ^{-1}\left(\frac{1}{4 x^{2}-1}\right)}{\pi}\right)$ નો પ્રદેશ $\dots\dots$છે.
- A$R-\left\{-\frac{1}{2}, \frac{1}{2}\right\}$
- B$(-\infty,-1] \cup[1, \infty) \cup\{0\}$
- C$\left(-\infty, \frac{-1}{2}\right) \cup\left(\frac{1}{2}, \infty\right) \cup\{0\}$
- ✓$\left(-\infty, \frac{-1}{\sqrt{2}}\right] \cup\left[\frac{1}{\sqrt{2}}, \infty\right) \cup\{0\}$