作为教师,很多时候会面临学生提出的一些难度大、思维深、不易当即回答的数学问题,但无论学生提出的问题多么深奥,对教师来说,弄清问题的本质,鞭辟入里地破解问题,是教师义不容辞的担当。这种担当,既是替学生解惑的需要,也是提升自身专业素养的契机。1题目如图1,在平面直角坐标系xOy中,已知正三角 As a teacher, many times, students are faced with some difficult, deep thinking, and difficult to answer mathematics questions raised by students. However, no matter how profound the questions raised by the students, it is for teachers to clarify the nature of the problem and to slash the problem to solve the problem. Teachers are incumbent on the responsibility. This kind of responsibility is not only a need for students to solve doubts, but also an opportunity to upgrade their professional qualities. 1 problem is shown in Figure 1, in the rectangular coordinate system xOy, known positive triangle