Cho hàm số $y=tanx-cotx$. Khoảng mà hàm số xác định là:

Question

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4 câu trả lời

Answer 1

$\left ( 0;2\pi \right )\setminus \left \{ \frac{\pi }{2};\pi ;\frac{3\pi }{2} \right \}$

Answer 2

$\left ( 0;2\pi \right )\setminus \left \{ \frac{3\pi }{2} \right \}$

Answer 3

$\left ( 0;2\pi \right )$

Answer 4

$\left ( 0;2\pi \right )\setminus \left \{ \frac{\pi }{2} \right \}$