名校
1 . 已知
,
,
均为正数,且
.
(1)是否存在
,
,
,使得
,说明理由;
(2)证明:
.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a57e060f61f7efa54982bda67db483a.png)
(1)是否存在
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5882aba406145a4755d3bc184b8aee30.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31270f0a9cb69c97225271fb354847db.png)
您最近一年使用:0次
2024-03-27更新
|
1004次组卷
|
10卷引用:四川省乐山市2024届高三第二次调查研究考试文科数学试题
解题方法
2 . 在平面四边形
中,已知
,
,
,
.
(1)若
,求
;
(2)求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee127a086a09c93d4c657fa1995a709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcc9341f0c7b85b283aa974862aa22.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608c6c9868fee7b0733748cee0586d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b506b0941433a6a5d5387d0ec95596ea.png)
您最近一年使用:0次
名校
3 . 下列说法正确的是( )
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2023-11-23更新
|
150次组卷
|
2卷引用:四川省乐山市峨眉第二中学校2023-2024学年高一上学期12月月考数学试题
4 . 设
均为正数且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751e274e9107d780c39ba9c49d6daefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd4067a19eeb07474557fe7b2508880.png)
A.1 | B.3 | C.![]() | D.2 |
您最近一年使用:0次
2023-09-24更新
|
504次组卷
|
3卷引用:四川省乐山市金口河区延风中学2023-2024学年高一上学期第一次月考数学试题
四川省乐山市金口河区延风中学2023-2024学年高一上学期第一次月考数学试题安徽省亳州市蒙城县第八中学2023-2024学年高一上学期9月月考数学试题(已下线)专题03 不等式1-【寒假自学课】(苏教版2019)
解题方法
5 . 设函数
,在区间
内随机抽取两个实数分别记为
,则
恒成立的概率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b085c7221a97fce56e4d46bf33714c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bcd445e9408c94b93ef3ab199f01bd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/b62d7750-5bd3-428d-8f8f-2be12c0a7c09.png?resizew=243)
(1)画出f(x)的图象,并写出
的解集;
(2)令f(x)的最小值为T,正数a,b满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fae2a874cbb5f6bb6d45f2e08a592c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/b62d7750-5bd3-428d-8f8f-2be12c0a7c09.png?resizew=243)
(1)画出f(x)的图象,并写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
(2)令f(x)的最小值为T,正数a,b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d069a600152af92a7fada66aa91138a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134c1c7e7fd9c7700ee49b0cd788227a.png)
您最近一年使用:0次
2023-05-08更新
|
406次组卷
|
5卷引用:四川省乐山市2023届高三三模理科数学试题
名校
解题方法
7 .
中,角
、
、
所对的边分别为
、
、
.若
,且
,则
周长的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d37b2f8d5da8eaa07442b941017c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-03-29更新
|
1645次组卷
|
5卷引用:四川省乐山市2023届高三下学期第二次调查研究考试数学(理)试题
解题方法
8 . 设函数
满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592744129d3499498fee320ae874645e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70b59f8b0c11329b1da8a896eb5d6e4e.png)
A.![]() | B.![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2023-02-19更新
|
613次组卷
|
8卷引用:四川省乐山市2022-2023学年高一上学期期末数学试题
9 . 已知
,
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e37ab2e2f2f451cf4062db6d4f2fdc.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 已知
,不等式
的解集为
.
(1)求实数a的值;
(2)若
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604b0b258a7c7ceed8dd18cdf4d834d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36942bbd73cbe1d94cf54c50732d323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda591d3909af06eabf6b37c65bfe571.png)
(1)求实数a的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367d01fc8623dfdf438455bfcd3b3186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb48d5bdcc1fb1b009715a500ec9331.png)
您最近一年使用:0次
2022-05-10更新
|
504次组卷
|
4卷引用:四川省乐山市2022届高三下学期第三次调查研究考试数学(理)试题