名校
解题方法
1 . 已知函数
.
(1)求
的最小值
;
(2)若
为正实数,且
,证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeac9c68cb0927860b9501715aee4161.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4437f0a5f10a9ff9fe6b7d6d353f67c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdedd395cdf9ce33624a1dd9439d41ea.png)
您最近一年使用:0次
2023-05-03更新
|
669次组卷
|
6卷引用:四川省德阳市第五中学2022-2023学年高二下学期5月月考理科数学试题
名校
2 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
(a,b,c均为正实数)的最小值为3,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c60fb92ead3858d0aa664de7d6b5bc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85579405bc345b4e93391e9209a7d47a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd72fd914bcb2dd1cb3b3f09481242f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd4067a19eeb07474557fe7b2508880.png)
您最近一年使用:0次
2022-04-20更新
|
795次组卷
|
5卷引用:四川省绵阳市南山中学2021-2022学年高二下学期期末热身考试数学(理)试题
名校
解题方法
3 . 已知函数
.
(1)解不等式
;
(2)令
的最小值为
正数
满足
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ebd5bbb34283ef1215546822b73455.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665dc334a37e61c356b636604eb0f8c3.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98914a2f34d457acf18e36d3b6eac5f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989680e6b74504b71f5ece8771c5301d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a529d09b6da4087bea0ef59aeb0db1d4.png)
您最近一年使用:0次
2021-01-14更新
|
357次组卷
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7卷引用: 四川省仁寿县文宫中学2021-2022学年高二下学期期中考试数学(文科)试卷
名校
解题方法
4 .
已知函数
的图象的对称轴为
.
(1)求不等式
的解集;
(2)若函数
的最小值为
,正数
,
满足
,求证:
.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc9a02cca887bc92e440d171cb0db44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f0da9e1ee80b76b816d47dc040b797.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/034a0f4d3755f5f4934e5f11b1296c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da249e66a26287b76dcfe19e7d12030.png)
您最近一年使用:0次
2018-04-19更新
|
590次组卷
|
4卷引用:四川省宜宾市第四中学校2019-2020学年高二下学期第二次月考数学(理)试题