2022高一·全国·专题练习
名校
1 . 若x1,x2都满足方程
且
,则
的取值范围是 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b9cadbe9b5584d365e2db6c318b695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c54705d32dc6820f1a90eec2225dcf.png)
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2022-11-17更新
|
165次组卷
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4卷引用:1.1.1 绝对值(分层练习)-2022年初升高数学无忧衔接
(已下线)1.1.1 绝对值(分层练习)-2022年初升高数学无忧衔接上海市南洋模范中学2022-2023学年高一上学期开学考试数学试题(已下线)专题02等式与不等式(8个考点)(2)上海市位育中学2023-2024学年高一上学期期中数学试题
名校
2 . 给定无理数
.若正整数
,
,
,
满足
.
(1)试比较三数
,
,
的大小;
(2)证明存在两组不完全相同的正整数a,b,c,d满足
且
;
(3)若
,证明下面三个不等式中至少有一个不成立
①
②
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3bc7f9c1aab24a770e989c5f924e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4710d3e509da892b6545d78e8f422a2.png)
(1)试比较三数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b207782857715994fcd5b2826bb5da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45a8e3c0c4510ae1e7752a6ddc3dcce.png)
(2)证明存在两组不完全相同的正整数a,b,c,d满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4710d3e509da892b6545d78e8f422a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ca6053a889751a9ad6cef99b6916c3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ca6053a889751a9ad6cef99b6916c3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64363ccfd12cf4d17b50cc7d59e459f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00d320136453c0093128550b7e50096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fda4b8f1f5f6c04554c2994c04f4345.png)
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2022-11-14更新
|
309次组卷
|
3卷引用:上海市复旦大学附属中学2022-2023学年高一上学期期中数学试题
3 . 如果当
时,
都能取到最小值,则实数k的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13310819822f7444b4aca24ec578c84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733bab42ef5037d79b4a618d598ba24c.png)
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名校
4 . 若
,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec5077b22a7ee180c7e7d43ff117eb8.png)
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2022-11-12更新
|
306次组卷
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3卷引用:上海交通大学附属中学浦东实验中学2022-2023学年高一上学期期中数学试题
解题方法
5 . (1)已知
,若
恒成立,求实数
的取值范围.
(2)已知集合A=
,B=
,且
,求实数a,b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7ef3b3cc65cec2366744fa4b69e848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d944512ebdaa23669d524285c98751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知集合A=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d207b8085842454b2c342c53ff78f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e236bec4bf35f5d954599f2e344b96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da58cbf9047a26dbcce20e52fa55c11.png)
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解题方法
6 . (1)已知
,用反证法证明:
中至少有一个大于等于0;
(2)已知
的最小值是1,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcf02c0e2c50020b77aadad8b0a2c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe50c6c8d2c3f3db25f06f0392ed054.png)
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名校
7 . 设函数
的定义域为
,如果存在正实数
,使对任意的
,都有
,且
恒成立,则称函数
为
上的“
型增函数”.已知
是定义在
上的奇函数,且当
时,
,若
为
上的“
型增函数”,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f406979775d7d311a79b2e15fb5f29ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea43b02c55add0a5d6d51fa5f4ea5f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8944834385332001a50dbf8449caa34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151e5633a5d0cc30b254167e3dda5803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
8 . 设
,则“
”是“
”成立的___________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c328c9c4ec69c4275e27576fb61655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9da8ae7c62ccdf9dc013d6e563f2460.png)
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名校
9 . 当
时,
恒成立,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46800232bd76c00bc7cd92bef26aaf63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cc0272d865b05c086bbcdf29979fc0.png)
A.当![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
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2022-05-13更新
|
628次组卷
|
2卷引用:浙江省“新高考名校联盟”2021-2022学年高一下学期5月检测数学试题
10 . 已知
.
(1)求证:
;
(2)若当
时
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a596d7029a0b7b540c49adb6d188d470.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a583e1950f97c1c88fc322421fd1dfc.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e513e826e6dcf3f57e414999927227ac.png)
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