名校
解题方法
1 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c77777249043377fe1fd0a4cb5bdfdb.png)
,且
的最小值为3.
(Ⅰ)求
的值;
(Ⅱ)若
,求满足条件的
的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c77777249043377fe1fd0a4cb5bdfdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030b8f88f123418da8427c2c5252a177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab989f85a681b41c29465d4be74b789f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2020-09-16更新
|
92次组卷
|
5卷引用:2016届陕西省西安市一中高三下学期第一次模拟理科数学试卷
名校
解题方法
2 . 已知函数
.
(1)当
时,解不等式
;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fae3aafeddd206663d21b9d697af59d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8d996099822eca0f217afbd8e52d61.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba611ba198a60ef62549e276a925daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-11更新
|
158次组卷
|
3卷引用:黑龙江省实验校2020届高三第三次模拟考试数学(文)试题
解题方法
3 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc872b4223634dc15024a57696fe0729.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407d1964cafefcb8d8953d56208c7acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-03-19更新
|
177次组卷
|
7卷引用:【市级联考】河北省邢台市2019届高三上学期一轮摸底考试(12月)数学(文)试题
名校
4 . 已知函数
.
(1)求不等式
的解集;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d67853d631b516c99dce27a8b2e62c.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99f6241f03f76761403af0c53d3a0f1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70849bfed215b0e4282283c386e0d3b.png)
您最近一年使用:0次
2020-01-07更新
|
714次组卷
|
6卷引用:青海省西宁市2020届高三复习检测(一)数学试题
解题方法
5 . 设
.
(1)若
恒成立,求实数
的取值范围;
(2)设
的最大值为
,
均为正实数,当
时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7a4bf07dfec156e6c0d34ff5c8cd9d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e5e0d3e469f3bc988cc8959076ba01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e93d8fb77f5bd2c0fc690752dfd771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e5f11eb65d60defadfc9666eb7f100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd4067a19eeb07474557fe7b2508880.png)
您最近一年使用:0次
2017-03-17更新
|
685次组卷
|
4卷引用:【全国市级联考】青海省西宁市2018届高三下学期复习检测二(二模)数学理科试题