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随着高考改革的不断推进,数学对空间角的考查由以前的具体型向着抽象性、应用型改进,由理论型向实践型过渡,由静态向动态转化.现就将空间角部分高考的创新题型的解题策略总结如下,供备考同学参考使用.1确定动态异面直线角的最值问题例1(2015年四川卷)四边形ABCD和ADPQ均为正方形,它们所在的平面互相垂直,动点
With the continuous advancement of the reform of the college entrance examination, the examination of the spatial angle of mathematics has evolved from the previous concrete model to the abstract and applied type of improvement, from the theoretical model to the practical model, and from static to dynamic transformation. Now the part of the space corner of the college entrance examination innovation The problem-solving strategies of the questions are summarized as follows, for reference by the test students. 1 Determining the maximum value of dynamic non-linear angles Example 1 (Sichuan, 2015) The quadrilateral ABCD and ADPQ are square, and the planes they lie in are perpendicular to each other. point