MCQ
વિધેય $y = {\sin ^{ - 1}}\left( {\frac{{2x}}{{1 + {x^2}}}} \right)$ એ $..........$ બિંદુએ વિકલનીય નથી.
- A$|x|\, < 1$
- ✓$x = 1, - 1$
- C$|x|\, > 1$
- Dએકપણ નહી.
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