MCQ
$ f(x) = \frac {1}{\sqrt {|\cos x| + \cos x}}$ નો પ્રદેશ
- A$ [ -2n\pi, 2n\pi]$
- B$ (2n\pi, (2n+1)\pi)$
- C$\left( \frac {(4n+1)\pi}{2}, \frac {(4n+3)\pi}{2}\right)$
- ✓$\left( \frac {(4n-1)\pi}{2}, \frac {(4n+1)\pi}{2}\right)$
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