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中考几何题常巧妙地与韦达定理结合起来,构成了一些别开生面的好试题.现以1995年中考题为例.分析如下:一、求方程中的字母系数例1已知RtthABC7中/C—goo,斜边长为5.两直角边的长分别是l‘一(2nl一N。+4(nl-1)一o的根.求I。I的值.(1995年宁夏区九义教材考题)分
The geometry of the test questions is often subtly combined with the Weddah theorem to form a few good questions. Take the exam in 1995 as an example. The analysis is as follows: 1. Finding the letter coefficient in the equation Example 1 is known as RtthABC7 with /C-goo and the hypotenuse length is 5. The lengths of the two right-angled sides are respectively l’-(2nl-N. +4(nl-1)-o. Find the value of I. I. (1995 Ningxia District Jiuyi teaching materials) points