论文部分内容阅读
1.问题提出三角函数是以角度为自变量的一种较为特殊的函数,在近些年高考应试中,三角函数所处的地位基本处于简单考查层次,而且题型也呈现出模式化的特点,因此愈来愈多的有关三角知识的问题成为学生模式识别的问题,对于三角函数知识的关注更多集中在:正、余弦定理、恒等变换、函数图象等重要知识,对弧度制、三角函数定义、三角函数线等具备重要承上启下的知识渐渐不太关注.究其原因很简单,毕竟诸
1. PROBLEM PROBLEM Trigonometric function is a more special function based on the angle of argument. In the entrance examination of college entrance examination in recent years, the position of the trigonometric function is basically at the level of simple examination, and the questions are also characterized by the pattern , So more and more questions about trigonometry become the problems of pattern recognition of students. For the knowledge of trigonometry, more attention is paid to the important knowledge such as positive and cosine theorem, identity transformation, function image and so on. The definition of trigonometrical functions, trigonometrical functions, etc., have important bearing on the knowledge of gradually less concerned. The reason is very simple, after all,