论文部分内容阅读
陷阱盘点1.忽略直线的斜率与倾斜角之间的对应关系.2.忽视直线(切线)的斜率不存在的情形.3.忽视圆的方程中变量的取值范围.4.忽视点与圆的位置关系.5.忽视圆方程的隐含条件.6.忽视直线中截距为零的情况.7.忽视平行线间距离公式的前提条件.
Trap count 1. Ignore the slope of the line and the relationship between the tilt angle. 2. Ignore the slope of the line (tangent) does not exist .3. Ignore the range of variables in the circle range .4. Ignore the point and the circle .5 Ignore the implied conditions of the circular equation6 Ignore the case of zero intercept in straight line7. Prerequisites for neglecting the formula for the distance between parallel lines.