新课程改革中作为数学中的重要工具——行列式也被一些省市纳入到高中学习内容中来,这使得有些问题的解法更具规律性.坐标平面上的三角形面积、三点共线、三线共点等问题,常涉及到垂直、距离、斜率等,计算量大,化简过程冗繁,影响解题者的心 The new curriculum reform as an important tool in mathematics - determinants have also been included in some provinces and cities to high school learning content, which makes the solution to some problems more regular. The coordinate plane of the triangle area, three-point collinear, Third-line total points and other issues, often involving the vertical, distance, slope, etc., a large amount of computation, simplify the process of cumbersome, affecting the heart of the solution