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近几年高考立体几何解答题的设计,注意了求解方法既可用传统的几何方法解决,又可用向量方法处理,在求异面直线所成角、直线与平面的所成角、二面角的大小以及点到平面的距离时,向量方法都有标准的公式,这些公式对学生的空间想象能力要求相对不高,因此,我们要重视空间向量方法的应用。那么在完成解答的过程中,应该如何正确求出法向量的坐标,以及如何
In recent years, the design of college entrance examination geometry problem solving, pay attention to the solving method can be used to solve the traditional geometric methods, but also vector method to deal with, in seeking a straight line by the angle, straight line and plane into the angle, dihedral Size and point to plane distance, the vector method has a standard formula, these formulas on the students’ spatial imagination is relatively low, so we should pay attention to the application of the space vector method. Then in the process of completing the answer, how to correctly find the coordinates of the normal vector, and how