名校
1 . 不等式
的解集不是空集,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e1a6ed3b9acb8e283e5a5de764d328.png)
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名校
解题方法
2 . 已知
为数列
的前
项和,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14f5fdf0e4f9de36f08402dd96d237e.png)
若存在唯一的正整数n使得不等式
成立,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14f5fdf0e4f9de36f08402dd96d237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8616a1a4aa87887eb8286a5d3cc43eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d621d78a122142ab872a194591071b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2021高三·全国·专题练习
3 . 已知等差数列
的公差为
,首项为
,前
项和为
,则满足
的正整数
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86eea48c369d5d1cb29917a51fdad1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2018高二上·全国·专题练习
解题方法
4 . 若不等式
的解集不是空集,则实数
的取值范围是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1760ca89d78bce0a6af9becf65caca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018高一上·全国·专题练习
5 . 若不等式kx2-2x+1-k<0对满足
的所有k都成立,则x的取值范围为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e441e602c6da19d1c78b145e7484c3.png)
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6 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0406d8af75dc2fb374a2cbfb895264d1.png)
________ ;若关于
的不等式
在区间
上有解,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04caf886b24ac9fee263e203e89fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0406d8af75dc2fb374a2cbfb895264d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d9aa7cd50cbdd8a5b6cfaacbad0af29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc7bc07dde43da45e75bb38793257f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
7 . 若
有负值,则实数a的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed02a0eb91ac3b3f4e11796fc97a1a75.png)
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名校
8 . 已知函数
有2个零点
,
,若关于
的不等式
在
上有解,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8291515fc23756ec791cb3b58259850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c928060da9aa0d459ca27a9e26d656cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97492fc3074c4f5fee442aa2dbea638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29766ccf71f7f39dfddd6af62d185e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
9 . 在
上定义运算:
若存在
使得
成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacdf8bb561f541cad2b3158a38dab98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b6d16a51c32857bf574e95e76e09b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-10-25更新
|
263次组卷
|
4卷引用:江西省“山江湖”协作体2019-2020学年高二上学期10月月考数学试题
名校
解题方法
10 . 命题
,
为真,求实数
的取值范围__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4719ae41c417fc9f9970c387be0737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-10-15更新
|
179次组卷
|
2卷引用:河北省保定市唐县第一中学2020-2021学年高二上学期9月月考数学试题