论文部分内容阅读
复习这一单元,要求学生更深刻地理解有关极坐标的一些基本慨念,熟悉一些常见曲线的极坐标方程;会求曲线的极坐标方程;会进行两种坐标的互化。复习要点如下。 1.极坐标系。参阅高中数学课本第二册(以下简称“课本”)P174～176。注意: (1)在直角坐标系内,平面内的点M可与其坐标(x,y)建立起一一对应关系;而在极坐标系中,平面内的点与其坐标间却是一多对应的,这是极坐标系与直角坐标系的根本区别之一。如果
Reviewing this module requires students to understand more deeply some basic concepts about polar coordinates and to familiarize themselves with the polar equations of some common curves; to find the polar coordinate equations of the curves; to carry out the mutualization of the two coordinates. Review points are as follows. Polar coordinate system See Secondary School Mathematics Textbook, Book 2 (“Textbook”) P174 ~ 176. Note that: (1) In a Cartesian coordinate system, the point M in the plane can be in a one-to-one correspondence with its coordinates (x, y); in the polar coordinate system, the point in the plane and its coordinates are one- This is one of the fundamental differences between polar and Cartesian coordinates. in case