TẬP XÁC ĐỊNH D CỦA HÀM SỐ $ Y = \FRAC{{\TAN X – 1}}{{\SIN X}}$LÀ:
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Level:
Medium
Question Types: Multiple choice
Answers:
- $ D = R\\\backslash \\\left\\\{ {\\\frac{\\\pi }{2} + k\\\pi |k \\\in Z} \\\right\\\}.$
- $ D = R\\\backslash \\\left\\\{ {k\\\pi |k \\\in Z} \\\right\\\}.$
- $ D = R\\\backslash \\\left\\\{ 0 \\\right\\\}.$
- $ D = R\\\backslash \\\left\\\{ {\\\frac{{k\\\pi }}{2}|k \\\in Z} \\\right\\\}.$