Giải phương trình : \(\sin x + \sin 2x = 0\)
A.\(x = k\pi ,x = \pm \dfrac{{2\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
B.\(x = k\pi ,x = \pm \dfrac{{\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
C.\(x = k2\pi ,x = \pm \dfrac{{2\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
D.\(x = k2\pi ,x = \pm \dfrac{{\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
A.\(x = k\pi ,x = \pm \dfrac{{2\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
B.\(x = k\pi ,x = \pm \dfrac{{\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
C.\(x = k2\pi ,x = \pm \dfrac{{2\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
D.\(x = k2\pi ,x = \pm \dfrac{{\pi }}{3} + k2\pi \), \(k \in \mathbb{Z}\).
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Hóa Học lớp 12
