MCQ
$\tan ^{-1} \sqrt{4\left(x^2+x+1\right)}$ નો વિસ્તાર $ .......... $ છે .
- A$\left[\frac{\pi}{6}, \frac{\pi}{2}\right)$
- B$\left[\frac{\pi}{3}, \frac{\pi}{2}\right)$
- C$\left[\frac{\pi}{6}, \frac{\pi}{3}\right)$
- Dએકપણ નહિ
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