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解题是创造性的思维活动,在解答数学习题的过程中,要充分发掘题目的智力价值,得到不同解法,把特殊的结论发展为一般性结论,挖掘习题的可变性,这样可以拓展解题的思维视野,培养学习数学的积极性和创造性.例1已知椭圆C:x2/a2+y2/b2=1(a>b>0)的左、右焦点分别为F1,F2,左、右顶点分别为A1,A2.过F2且垂直于x轴的直线与椭圆C的一个交
Problem solving is a creative thinking activity. During the process of solving mathematical problems, we should fully explore the intellectual values of the questions, obtain different solutions, develop special conclusions into general conclusions, and excavate the variability of exercises so as to expand the problem solving Thinking horizons, and cultivating the enthusiasm and creativity of learning mathematics.Example 1 It is known that the left and right focal points of the elliptical C: x2 / a2 + y2 / b2 = 1 (a> b> 0) are F1, F2, A1, A2. A cross that crosses F2 and is perpendicular to the x-axis and an intersection of ellipse C