\(S = \left \{ {k2 \pi ; \, \frac{ \pi }{2} + k \pi |k \in Z} \right \} \)
A.\(S = \left\{ {\frac{\pi }{6} + k2\pi |k \in Z} \right\}\)
B.\(S = \left\{ {\frac{\pi }{3} + k2\pi |k \in Z} \right\}\)
C.\(S = \left\{ {\frac{{ - \pi }}{3} + k2\pi |k \in Z} \right\}\)
D.\(S = \left\{ {\frac{{ - \pi }}{6} + k2\pi |k \in Z} \right\}\)
A.\(S = \left\{ {\frac{\pi }{6} + k2\pi |k \in Z} \right\}\)
B.\(S = \left\{ {\frac{\pi }{3} + k2\pi |k \in Z} \right\}\)
C.\(S = \left\{ {\frac{{ - \pi }}{3} + k2\pi |k \in Z} \right\}\)
D.\(S = \left\{ {\frac{{ - \pi }}{6} + k2\pi |k \in Z} \right\}\)
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Hóa Học lớp 12
