解题方法
1 . 已知
.
(1)若
,求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75807858b7804a1ad2039c41f323a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288420f0b137ec90d963e6b5db65fe30.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753bc7b46730ab08df9ee4488ce34986.png)
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名校
解题方法
2 . (1)已知
都是正数,且
,求证:
;
(2)已知
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56667aabbe787eb1c3189d487d203e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13151685f039899d0e7240805d111281.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f433cd4ce145c6e7edf70b8189ac79a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
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3 . (1)已知
均为正实数,求证:
;
(2)已知
,且
,
①求证:
,②求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f14305fe9ecbe4aa54341b2c7574db.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a0aa068c979c53361d049ce49987a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
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4 . 已知
、
、
,且
.求证:
(1)
;
(2)
;
(3)
.
![](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/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f9223bc24df8d429d743692fff7c06.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4804a8460dfee558cab6c7669682a5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d952014dbdd2e0d9e8569a65b90eb30.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a828b21ca8cf9312b55f6382513d02.png)
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解题方法
5 . 已知
,
,
均为正数,且
,证明:
(1)
;
(2)若
,则
.
![](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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3615e9626eadac1703f1176db48383b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec75adf5a9834b6836589c74431d5632.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06bca74015843e9036953654323d737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5e4b0a268d8e90f6d7a9d3979385c4.png)
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2024-01-29更新
|
404次组卷
|
7卷引用:重庆市乌江新高考协作体2023-2024学年高一下学期开学学业质量联合调研抽测数学试题
重庆市乌江新高考协作体2023-2024学年高一下学期开学学业质量联合调研抽测数学试题内蒙古自治区锡林郭勒盟2023-2024学年高三上学期1月期末教学质量检测理科数学试题内蒙古自治区锡林郭勒盟2023-2024学年高三上学期1月期末教学质量检测文科数学试题内蒙古包头市2024届高三上学期期末教学质量检测数学(理)试题内蒙古包头市2024届高三上学期期末教学质量检测数学(文)试题(已下线)经典好题1 积常和小 和常积大【练】(已下线)考点7 基本不等式及其应用 --2024届高考数学考点总动员【练】
解题方法
6 . 已知函数
,其中
.
(1)当
时,若
,求
的值;
(2)证明:
;
(3)若函数
的最大值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40b7076417a2d9a77657020cd3d0d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9920ba41061fb4971be07bda1ddfb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0698b324aad6962f9f50b240cffe48.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3125c342e7fcc6ba0aff633dbaf8d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023高一·上海·专题练习
7 . 设
为实数,求证:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1c8ea9826513bd96e1428819b35344.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b87b236e0870de97a8b5b3e7bdc3c0.png)
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2023高一·上海·专题练习
8 . 设
、
为实数,求证:
.
![](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/555692feb58c85f4c1ad5dfbbd575639.png)
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解题方法
9 . (1)解不等式
;
(2)证明:
对所有实数x恒成立,并指出等号成立时x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a525d58ff7698f2b4b0d473ceb9c401.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c66b1c5a79eac5e6bee805bebd0985.png)
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解题方法
10 . 若实数
、
、
满足
,则称
比
远离
.
(1)若
比
远离
,求
的取值范围;
(2)对任意正数
,
,证明:
;
(3)对任意两个不相等的正数
,
,证明:
比
远离
.
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b782dd2de9c9caa840838cd63d817de.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/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e1fbe0fb49725cf6d1e689ee8986d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)对任意正数
![](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/cc98f6e2b1d41bc552c083979f53a83d.png)
(3)对任意两个不相等的正数
![](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/fe2b05214c8b22507f0c36b110593d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a977414a3ad65caf5eee28e0cd175de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c717d2811d58b258ce0b08ff602c027.png)
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