亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問數學考題練習:已知a,b是實數,關于x的不等式組的解集表示在!

數學考題練習:已知a,b是實數,關于x的不等式組的解集表示在

更新時間:2024-01-12 16:42:03作者:貝語網校

已知a,b是實數,關于x的不等式組的解集表示在數軸上如圖所示,則這個不等式組是

A.

B.

C.

D.

試題答案

D

試題解析

先根據關于x的不等式組的解集表示在數軸上表示方法求出x的取值范圍,由此即可得出符合條件的不等式組.

解答:∵由數軸上x的取值范圍可知,-1<x<1,

∴符合條件的不等式解集分別為x>-1且x<1,即-x<1,x<1.

故選D.

點評:本題考查的是在數軸上表示不等式組的解集,先根據題意得出不等式組的解集是解答此題的關鍵.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |