The domain of \( f(x)=\frac{1}{\sqrt{|\cos x|+\cos x}} \) is (A) \( [-2 n \pi, 2 n \pi], n \in Z...

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The domain of \( f(x)=\frac{1}{\sqrt{|\cos x|+\cos x}} \) is
(A) \( [-2 n \pi, 2 n \pi], n \in Z \)
(B) \( (2 n \pi, \overline{2 n+1} \pi), n \in Z \)
(C) \( \left(\frac{(4 n+1) \pi}{2}, \frac{(4 n+3) \pi}{2}\right), n \in Z \)
(D) \( \left(\frac{(4 n-1) \pi}{2}, \frac{(4 n+1) \pi}{2}\right), n \in Z \)
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