若分式2x+1/x^2-4x+3为非负数,求x的取值范围._数学解答

若分式2x+1/x^2-4x+3为非负数,求x的取值范围.

人气：264 ℃　时间：2020-04-17 02:32:54

解答

(2x+1)/(x^2-4x+3)>=0
(2x+1)/(x-3)(x-1)>=0
(2x+1)(x-3)(x-1)>=0且(x-3)(x-1）≠0
{x|-1/2