论文部分内容阅读
在试题中引入跨学科问题是一种非常可贵的尝试 .下面举出“数英双栖”题二例 ,请一同赏析 .例 1 Ｉｆｔｈｅｌｉｎｅｘ + 3ｙ +ａ =0ａｎｄｔｈｅｃｉｒｃｌｅｘ2 + ｙ2 =1ｈａｖｅｔｗｏｄｉｆｆｅｒｅｎｔｉｎｔｅｒｓｅｃｔｉｏｎｓ(交点 )ｉｎｔｈｅｔｈｉｒｄｑｕａｄｒ?
Introducing interdisciplinary issues in the questions is a very valuable attempt. Here are two examples of the “Everything in Britain and Britain” question, please review them together. Example 1 Ifthelinex + 3y +a =0andthecirclex2 + y2 = 1havetwodifferentintersections (intersection) inthethirdquadr?