1 . 已知
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0947896096c3f3cd14e199f3c008e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
A.充分非必要条件 | B.必要非充分条件 | C.充要条件 | D.非充分非必要条件 |
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2 . 不等式
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908a55ea0ba2b6a9b20684f3258f7ba1.png)
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3 . 解关于x的不等式组:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60aa1bde9f67974324ec851b740bfd36.png)
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4 . 已知关于
的不等式
的解集为
或
.
(1)求
的值;
(2)当
且满足
时,有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9deeb02676b13db2735699803f8c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84c3f16468f5dc475b785b8dc0dce4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3058a7de52d323052ce7196204c0c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af53dad087055e702e014d4d3b5cb378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 . 求下列不等式的解集:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7436cf2e64f40ea5f5a79e8a143dab6e.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7436cf2e64f40ea5f5a79e8a143dab6e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca412b32382e4a5e45a928b6ac9ce127.png)
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6 . 关于
的不等式
的解集
有下列结论,其中正确的是______ .
①
可以是
;②
可以是
;③
可以是
;④
可以是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d466f06147310b34624ce018cf58d6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127aacea765b09f5110b3176493f0dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8156a557d9b963a77dfd88178789ac7.png)
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23-24高一上·上海浦东新·期中
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解题方法
7 . 已知不等式
对任意实数x恒成立.
(1)求a的取值范围;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8926477935bcda6bd9f8c2adb64a2c47.png)
(1)求a的取值范围;
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66c008af877770b9988d606eaab9467.png)
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23-24高一上·上海浦东新·期中
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8 . 已知集合
,
,且
有4个子集,则实数m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e862f3f5557cf30db810e000a03747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fb27cdba8d6470e87e02bec33709cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
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9 . 不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe3fe965c69167599f1422c8b2e088e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 设全集
,若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2143cff1201a49034668264e48d1e17.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa26ede4564b80c035c146272384bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f873d05efd2bca4231b99f7e770ce7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2143cff1201a49034668264e48d1e17.png)
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