设A={x|-1

问题描述:

设A={x|-1

|x²+1-m|<3﹣3<x²+1-m<3m-4<x²<m+2∵A =[﹣1,2]⊆ B ∴2∈B,0∈B∴m+2>2²且m-4<0即m∈﹙2,4﹚,∴﹣√﹙m+2﹚<x<√﹙m+2﹚∴﹣√﹙m+2﹚<﹣1且√﹙m+2﹚>2∴m>﹣1且m>2即m>2...