Question

[Pham Trong Bach]

Hàm số $y= 3\tan ( 2x - \pi /6)$ có tập xác định là:

A.  $\mathrm{ℝ}\backslash \left\{\frac{\mathrm{\pi }}{6}+k\mathrm{\pi }, \mathrm{k}\in \mathrm{\mathbb{Z}}\right\}$

B. $\mathrm{ℝ}\backslash \left\{\frac{\mathrm{\pi }}{3}+k\mathrm{\pi }, \mathrm{k}\in \mathrm{\mathbb{Z}}\right\}$

C. $\mathrm{ℝ}\backslash \left\{-\frac{\mathrm{\pi }}{3}+k\mathrm{\pi }, \mathrm{k}\in \mathrm{\mathbb{Z}}\right\}$

D. $\mathrm{ℝ}\backslash \left\{\frac{\mathrm{\pi }}{3}+k\frac{\mathrm{\pi }}{2}, \mathrm{k}\in \mathrm{\mathbb{Z}}\right\}$

Answer 1

[Cao Minh Tâm]

Chọn D