它们一样吗

• 作 者: 王鼎 邓厚波
• 机 构: 江苏海安县城南实验中学七(5)班,江苏海安县城南实验中学,
• 出 处: 中学生数理化(七年级数学)(配合人教社教材)
• 发表日期: 2016年Z1期
• 关键词: 已知点 平面直角坐标系 符号表 数学问题 符号语言 角平分线 呈现形式

你在学习数学时注意过各种不同的表达方式吗?下面跟着王鼎同学看一看他的发现吧.进入初中后,我们接触了很多符号语言,有时用文字表达很长的数学问题,用符号表达却非常简洁.但是,一道非常简单的题目,有时也可能因为用符号表达增加了难度.题目1:在平面直角坐标系中,已知点M到两坐标轴的距离相等,它的横坐标为2,求点M的坐标.题目2:在平面直角坐标系中,已知点P(x,y),x=y,且点P到y轴的距离为2,求点P的坐标.

Have you noticed a variety of different expressions when you are studying math? Here’s what WangDing classmates will look at his findings: After entering junior high school, we come into contact with many symbolic languages, and sometimes express long math problems in words Symbolic expression is very simple, but a very simple topic, sometimes also because of the symbolic expression to increase the degree of difficulty. Title 1: Plane Cartesian coordinate system, the known point M to the two coordinate axis distance equal to its horizontal Coordinate 2, and find the coordinate of point M. Problem 2: In plane rectangular coordinate system, we know the point P (x, y), x = y, and the distance from point P to y axis is 2, find the coordinate of point P .