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初中的解析几何知识作为数学学习的重要内容之一,使得数形结合的数学方法渗透其中.解析几何最大特点是将几何通过坐标数学运算化,建立了几何知识数学化的途径.在解析几何中,将原有的图形进行适当旋转,往往即要考查学生的空间思维能力,又要逻辑推理能力.例1如图1,在平面直角坐标系中,己知△AOB是等边三
As one of the important contents of mathematics learning, the analytic geometry knowledge of junior middle school makes the mathematics method of the combination of number and form infiltrated into it.The most prominent feature of analytic geometry is that the geometry is mathmed by coordinates and the way of mathematics of geometric knowledge is established. In analytic geometry , The appropriate rotation of the original graphics, often that students need to examine the spatial thinking ability, but also logical reasoning ability Example 1 Figure 1, rectangular coordinate system, known △ AOB is equilateral