Hello, I'm from Shandong College Entrance Examination. I'm glad to give you an answer. I can definitely tell you that you can set up a department. The college entrance examination only depends on whether you can solve it. Of course, it can also be solved by geometric method. However, if you have a good foundation, I suggest you use geometry method, because it can improve your speed and score points step by step. If you calculate carefully, use the coordinate method. It depends, of course. I wish you success!