Nghiệm của phương trình \(\sin x\left( {2\cos x - \sqrt 3 } \right) = 0\) là:
A.\(x = \pm \dfrac{\pi }{6} + k2\pi \)
B.\(\left[ \begin{array}{l}x = k\pi \\x = \pm \dfrac{\pi }{6} + k2\pi \end{array} \right.\)
C.\(\left[ \begin{array}{l}x = k\pi \\x = \pm \dfrac{\pi }{6} + k\pi \end{array} \right.\)
D.\(\left[ \begin{array}{l}x = k2\pi \\x = \pm \dfrac{\pi }{3} + k2\pi \end{array} \right.\)
A.\(x = \pm \dfrac{\pi }{6} + k2\pi \)
B.\(\left[ \begin{array}{l}x = k\pi \\x = \pm \dfrac{\pi }{6} + k2\pi \end{array} \right.\)
C.\(\left[ \begin{array}{l}x = k\pi \\x = \pm \dfrac{\pi }{6} + k\pi \end{array} \right.\)
D.\(\left[ \begin{array}{l}x = k2\pi \\x = \pm \dfrac{\pi }{3} + k2\pi \end{array} \right.\)
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Hóa Học lớp 12
