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1 . 设关于x的不等式
的解集为S,且
,
则实数a的范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba00fecb78dfb745a0d723d26123e2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ea9a804573617cb3e9414c9a74925b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37e1e7f7463cb4f958a008323b13492.png)
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2 . 若关于
的不等式
的解集为
,
的解集为
.
(1)试求
和
;
(2)是否存在实数
,使得
?若存在,求
的范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374d5551b9e7ca9734d0d13301d8001a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702d9438cd5abb9efc10b661d8732882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)试求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95321d0e551daa25104d32157249c23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 下列命题中正确的是( )
A.已知函数![]() ![]() ![]() ![]() ![]() |
B.已知定义在![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.函数![]() ![]() ![]() ![]() ![]() |
D.函数![]() ![]() ![]() |
您最近一年使用:0次
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4 . 函数
.
(1)根据
不同取值,讨论函数
的奇偶性;
(2)若
,对于任意的
,不等式
恒成立,求实数
的取值范围;
(3)若已知
,
. 设函数
,
,存在
、
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db58afeac1cfe83233a8887e16f59b7.png)
(1)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa43aa41923960f8af7e8f1b1bd1695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7aede2e847d081811f62ce462906167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64587952d138b00a1c463df835f5500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-12-09更新
|
659次组卷
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3卷引用:上海市新川中学2018-2019学年高三上学期10月月考数学试题
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5 . 设
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369dd3ff5cc1dea0949d0a538e3cdebb.png)
,记
.
(1)若
,
,当
时,求
的最大值;
(2)若
,
,且方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d533c2927bf8b0de9dd6fe3659f59e72.png)
有两个不相等的实根
、
,求
的取值范围;
(3)若
,
,
,且a、b、c是三角形的三边长,试求满足等式:
有解的最大的x的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f33b53f9075962e636fd8a92a71a71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369dd3ff5cc1dea0949d0a538e3cdebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ad943df3f041566c76f1a3b1513852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bb053ba9f2751c97b3dc4c1898080b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4880034fc9384ba2c267747628ec8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d533c2927bf8b0de9dd6fe3659f59e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2ed12bdfda0c5bfff863f6da53cfec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81eedd077b507f134c97a79293190a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d10a32f013100f9a42d8a88d7fb222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
您最近一年使用:0次
2020-01-15更新
|
206次组卷
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2卷引用:上海市七宝中学2017-2018学年高三上学期10月月考数学试题
2023高三·全国·专题练习
解题方法
6 . 已知二次函数
的图像过点
,且不等式
的解集为
.
(1)求
的解析式:
(2)若
在区间
上有最小值2,求实数
的值:
(3)设
,若当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa504a3525899b292b2b53aae50fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b442d18f7dbed6dce94a1071d2794c5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925a5f8913bc30c7a63cf7b5758dca0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c33b69adc112831fa115b5dffdb616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b744595737fa64d4e638e4abc07fd16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca97e3aa8061c4d8e621c5598c69b13b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9035ea1d8f2d20018e37eddd2deae7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7 . 已知函数
.
(1)设不等式
的解集为集合
,且
是集合
的真子集,求实数
的取值范围;
(2)若实数
取(1)中
的最大整数,存在实数
,使得关于
的方程
有解,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2799af73443cab5b745ffd68500a31fa.png)
(1)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e7a12441fffdad4f0c086c563aeeac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485db54a65a2004e5dd3e69e1b4c1af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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8 . 已知函数
(其中
,
均为常数,
且
)的图象经过点
与点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2a42e5f3758bf3459b5b47d7e3ba12.png)
(1)求
,
的值;
(2)求不等式
的解集;
(3)设函数
,若对任意的
,存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fbc14bad2edac9a5e361eede29e30f.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/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48a644e1135f4ddcd2fe1a345769812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2a42e5f3758bf3459b5b47d7e3ba12.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4253355887e92bdddb4779c4d4db79a7.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc8b9907cabe0422aa5e2a7a8211ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204687ff0d957eece42db00f067f15a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5beb7b2c335be1738933501a10df407f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be814e1e66a7607de96e126aeffcdfdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-12-26更新
|
860次组卷
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4卷引用:江苏省泰州中学2020-2021学年高一上学期12月第二次质量检测数学试题
江苏省泰州中学2020-2021学年高一上学期12月第二次质量检测数学试题四川省眉山市彭山区第一中学2022-2023学年高一上学期期末考试数学试题江西省宜丰中学2022-2023学年高一上学期12月月考数学试题(已下线)专题06 对数函数2-期末复习重难培优与单元检测(人教A版2019)
名校
9 . 下列结论正确的有( )
A.不等式![]() ![]() |
B.函数![]() |
C.若方程![]() ![]() |
D.设a,b,c为实数,不等式![]() ![]() ![]() |
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10 . (1)定义一种新的集合运算
:
.若集合
,
,设
按运算
:求集合
.
(2)设不等式
的解集为N,若
是
的必要条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137976ed32d4020818ebc61d54337668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605068ffcff010dc98245aabc482ef43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be372bc439d2429a57954d85993e858d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d73a11c1c978c930290fba8c7c79f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb6d048e00356c2f9ca7297c52a7904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca06304795e9c2c1fd0b4a52eb8d5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-10-23更新
|
389次组卷
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2卷引用:湖南省长沙市周南中学2020-2021学年高一上学期第一次月考数学试题