名校
1 . 若实数
,
满足
,则
的最小值是______ ,此时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2417a91dbfd17bdca40186d804db06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86db2dcc105756a0efd60623dfc4e00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
您最近一年使用:0次
2 . 已知实数
,
满足对任意的实数
,不等式
恒成立,则
的最小值是___________ .
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f67e4eb752ced56c45f326cd39a40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a4034330ec48e65d5a627c4184760.png)
您最近一年使用:0次
3 . 若不等式
对于
,
上恒成立,则
的最大值是__ ,若
对于
,
上恒成立,则
的最大值是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6cee1ba235db8c1ce76c3eb55bbfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837c6667703301c00e24bf589fa36c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad04b9df1032e5d2953e45d238da08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a343d47de28db5748a6f0a8c6f4715d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6cee1ba235db8c1ce76c3eb55bbfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8794392226135e30dd0bbc84e253bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad04b9df1032e5d2953e45d238da08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c80587db89817c17a46bd0ebd93b87a.png)
您最近一年使用:0次
2020-09-25更新
|
543次组卷
|
3卷引用:浙江省浙北四校2020届高三下学期二模数学试题
2020高三·全国·专题练习
解题方法
4 . 对于
,当非零实数a,b满足
,且使
最大时,
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6de2f930c75baefa8284408a8b51b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba20373cd0c2ef4ef38adcab855cc13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed90639b5f6a23c775aabde595151fb.png)
您最近一年使用:0次
5 . 设
,
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e744af0f65e797a35d976c20f2dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d7d6e40acafde14a5bbecad3d85c64.png)
您最近一年使用:0次
名校
解题方法
6 . 设
,当
取得最小值
时,函数
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66eba129d92ede31b728e2590c4db2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50601f4b8a175daef2cca87208bea881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69da5e83c6d8dd48b166e60dc7a755a8.png)
您最近一年使用:0次
2020高三·全国·专题练习
解题方法
7 . 若不等式
在
上恒成立,则正实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb8869bb368eab14e07384ae925a91a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
8 . 记
,设函数
,若对于任意x∈R,都有
成立,则实数t的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d219b744bfd8032077a9c97f5a6a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe55d322de17d8e8778b82b713fd47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7158579a647b08871b39261de93940b2.png)
您最近一年使用:0次
2020-07-27更新
|
1178次组卷
|
4卷引用:浙江省宁波市2019-2020学年高一下学期期末数学试题
浙江省宁波市2019-2020学年高一下学期期末数学试题(已下线)期末测试(能力提升)(1)-2020-2021学年高一数学(必修一)单元测试定心卷(沪教版2020)(已下线)第83练 计算速度训练3福建省宁德市福安市福安一中2023-2024学年高三上学期10月月考数学试题
9 . 已知函数
,当
时,
的最大值为
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b869a4d4557c11784e24c3b0a166f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365114c53aa12abda1004c8e4cb4ca0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
您最近一年使用:0次
解题方法
10 . 若不等式
在
上恒成立,则正实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7524cdee6c684c6f56b76881b96f8a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次