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纵观近年来中考数学试卷中,围绕可化为一元二次方程的分式方程,出现了一批考查创新意识和创新能力的新题型,归纳起来主要有: 一、探求规律型例1 (山西,2002)阅读下列材料:关于x 的方程:x+1/x=c+1/c的解是x1=c,x2=1/c;x-1/x=c-1/c(即x+-1/x=c+-1/c)的解是x1=
Throughout the mathematics examination papers of the senior high school entrance examination in recent years, around the fractional equations that can be converted into a quadratic equation, there have emerged a number of new questions that examine innovation consciousness and innovation ability. They are summarized as follows: First, explore the pattern of regularity 1 ( Shanxi, 2002) Read the following materials: The equation for x: x+1/x=c+1/c The solution is x1=c, x2=1/c; x-1/x=c-1/c (ie The solution of x+-1/x=c+-1/c) is x1=