解析几何中 ,由于二次曲线的方程皆为二次方程 ,在涉及到与它们有关的面积问题时 ,如果采用常规思路 ,即求边长 ,求高 ,往往运算量较大 .如果运用我们熟知的面积割补法来处理 ,有时会收到事半功倍的效果 .例 1　如果Ｃ是椭圆ｘ2ａ2 + ｙ2ｂ2 =1上第一象限内的任一点 ,Ａ ,Ｂ分? In analytic geometry, since the equations of the quadratic curve are all quadratic equations, when it comes to the area related to them, if we use the conventional thinking, that is, we need to find the length of the side and the height of the quadratic curve, we often have a large amount of computation. The area shuffling method to deal with, and sometimes will receive a multiplier effect. Example 1 If C is an ellipse x2a2 + y2b2 =1 on any point in the first quadrant, A, B points?