名校
1 . 已知函数
(
)在其定义域内有两个不同的极值点.
(I)求a的取值范围;
(II)记两个极值点分别为
,且
.已知
,若不等式
恒成立,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5124251b521fb2525f55b99ee9ff6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(I)求a的取值范围;
(II)记两个极值点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5def2e680848aaf69b5a8c0f50ce05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2016-12-04更新
|
783次组卷
|
10卷引用:四川省成都市石室中学2022届高三上学期期末数学(理)试题
2 . 已知二次函数
(
为非零常数)的图象与坐标轴有三个交点,记过这三个交点的圆为圆
.
(1)求
的取值范围;
(2)试证明圆
过定点(与
取值无关),并求出定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536826891701f9a9be68203eaab7e66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)试证明圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-04更新
|
488次组卷
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2卷引用:2016届四川省绵阳市高中高三上第二次诊断性考试文科数学试卷
解题方法
3 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20767e6e377d470eba7c01152afca7b4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5f116369fcc5f618de6bf5e9d8a419.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb37cc0e32ed4f29a039edd48a79233f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-04-08更新
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292次组卷
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2卷引用:四川省百师联盟2024届高三冲刺卷(三)理科数学试题(全国卷)
解题方法
4 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)当
时,若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ac882a053980b178eedc22d1320320.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392f716be3f4428d1abc462b702b9446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-04-08更新
|
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2卷引用:四川省百师联盟2024届高三冲刺卷(二)全国卷理科数学试题
名校
5 . 已知函数
.
(1)求不等式
的解集;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a7809ee1fb390e90806aba2ad66453.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1dc00f6f95b17ed4118c74764e23730.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842d4a89914a21a35ee6c14444cf8815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-12-24更新
|
399次组卷
|
4卷引用:四川省成都市石室中学2024届高三上学期期末数学(理)试题
名校
解题方法
6 . 已知函数
.
(1)求不等式
的解集;
(2)若
,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276246854dd33691f6798db87faeea0b.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37dafb12565279285111a5948d835b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 下列说法中正确的是( )
A.已知函数![]() ![]() ![]() ![]() |
B.函数![]() ![]() |
C.设函数![]() ![]() ![]() ![]() |
D.已知函数![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
8 . 已知
,
,
.
(1)当
时,求
的解集;
(2)若关于
的不等式
的解集为
,
的解集为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ead9e67e1b855662553f1313055392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176c4a9de5a11fa2574fb00cd316a8db.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0db2c49919467a2e14540f2aabd05cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47a0b04c3da1ad31cccd905a575b151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-06-12更新
|
123次组卷
|
2卷引用:四川省百师联盟2024届高三信息押题卷(四)文科数学试题
名校
9 . 已知函数
.
(1)解不等式
;
(2)若关于
的不等式
的解集不是空集,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715715e7bd9142cdad07e91df7c7f140.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afa9af0b431836188a83a2cdbebdf01.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a84acec78a0c322605fcf4478ad5b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-11-24更新
|
174次组卷
|
2卷引用:四川省绵阳市三台县三台中学校2024届高三上学期二诊模拟数学(理)试题(一)
解题方法
10 . 已知函数
,且
的解集为 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a484e16f70f4bce2b8418d37c3e100a7.png)
(1)求
的值;
(2)设函数
,若存在
使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a4a2c36860ca8cd3ad4b77391f9595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f359824c075fa0bcdd51311d789ec3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a484e16f70f4bce2b8418d37c3e100a7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd49d1d6f2fdab11e26b1606275b5e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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