Tập nghiệm của phương trình $cot2x+2sin2x=\frac{1}{sin2x}$ là

Question

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4 câu trả lời

Answer 1

$\left \{ \pm \frac{\pi }{6}+k\pi ,k\pi ,k\in \mathbb{Z} \right \}$

Answer 2

$\left \{ \pm \frac{\pi }{3}+k\pi ,k\in \mathbb{Z} \right \}$

Answer 3

$\left \{ \pm \frac{\pi }{3}+k\pi ,k\pi ,k\in \mathbb{Z} \right \}$

Answer 4

$\left \{ \pm \frac{\pi }{6}+k\pi ,k\in \mathbb{Z} \right \}$