(3)x=2是方程ax2+(b-1)x+c=0的一个根;(4)当-1<x<2时,ax2+(b-1)x+c>0. 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析解答一 举报将(-1,-1),(0,2)(2,2)代入函数解析时,得 a-b+c=-1 c=2 4a+2b+c=2 ,解得...
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As a talent training base, universities should take on the responsibility of protecting and inheriting intangible cultural heritage, pay attention to the cultivation of talents, make full use of the living cultural genes of intangible cultural heritage and integrate them into university teaching, which...