高中数学提出了法向量的概念,它在立体几何研究中有着重要应用。法向量从另一个角度描述了平面的具体位置关系,因而一部分与平面有关的问题,若能借助于法向量来解决,往往能避开传统方法中的诸多不便。下面就具体来谈一谈法向量的应用。一、法向量在直线与平面所成的角中的应用如图,平面α与平面α的一条斜线AB,n为平面α的法向 High school mathematics put forward the concept of normal vector, which has important applications in the study of solid geometry. The normal vector describes the specific location of a plane from another perspective. Therefore, a part of plane-related problems, which can be solved by normal vectors, can often avoid the inconveniences caused by the traditional methods. Here to talk about the specific application of the normal vector. First, the normal vector in the angle between the straight line and the plane of the application as shown in Figure, plane α and plane α a slash AB, n is the normal direction of the plane α