解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8c06eff230fef2dc0ff3764bd6d69b.png)
更新时间:2024-05-11 08:58:17
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【知识点】 求一元一次不等式的解集解读
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【推荐1】解不等式
,并把它的解集在数轴上表示出来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbec3223627d265477628c9c7ef7865f.png)
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解答题-问答题
|
较易
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【推荐2】若a,b可以代表一个数或一个代数式,定义运算“
”如下:当
时,
;当
时,
.例如:
,
(1)填充
;
(2)若
,那么x的取值范围是 .
(3)若
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27c253572d507179819c6600bc27ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1132de2e8913dba9c5cc2396ecb09fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79756914fa0cd7061da1b43bf7e886c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba596b5861b99fda5a84fe5d87a50d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46cc62ddc4c1f9a0ba34616dd6e4340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2aa08d3083a1da91c12ee6a5247c8.png)
(1)填充
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a2d0102e2c03a51cef5de2f71083f3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81967546bb43b90d7422e16d3ad96bcd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ece728a88b8c4aa829b1e160054b4ae.png)
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