解题方法
1 . 给出四个命题:
①
的最小值为2;
②
的最大值为
;
③
的最小值为2;
④
的最小值为4.
其中真命题的个数是( )
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0143963f1d3eca162cfbdab458988f33.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d277bd4300ede1eb3b95491d56440bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a08263b4226e2dbb7f933a4e05309099.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94041ba44cda85526f6c4bc4e5edc266.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a90fbc59aca38f4b85454fa9fefe441.png)
其中真命题的个数是( )
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
2 . 已知
均为正实数,且
.
(1)比较
与
的大小;
(2)比较
和
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23250b7129f4a377484e30e65b598fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4904474db779777224a17b0617679d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de91ebbdcd46c7c4a97060bdc7034cac.png)
您最近一年使用:0次
解题方法
3 . 已知
都是正实数,且
的最小值为
.
(1)求
的值;
(2)求证:
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857e3b4d6d5402d6751d3636214b18e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2a5e097cce4048435e7866bab1c68f.png)
您最近一年使用:0次
解题方法
4 . 已知正数
,
,
满足
.
(1)求
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b55fdfce4929156d416ddc96659eb93.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd2c8162a60806cbe422405adf0b862.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb917f6820d710f8c36c4831e6129370.png)
您最近一年使用:0次
名校
解题方法
5 . 若正项等比数列
的前n项和为
,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/961c2839d49bceb0cbe3e437ee38de6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154a7abc7a8b1f14fec7b66a77ba8f73.png)
A.10 | B.15 | C.20 | D.25 |
您最近一年使用:0次
2024-02-25更新
|
553次组卷
|
3卷引用:1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(十一)
1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(十一)山西省临汾市浮山中学校2023-2024学年高二下学期第一次月考数学试卷(A)(已下线)第一章数列章末十六种常考题型归类(1)
解题方法
6 . 已知函数
(
),
.
(1)若
,求不等式
的解集;
(2)若
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10905f5554f6d0b46a902f8bf722ceba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e334d9ba8d9fcffd159ea61cbbd04ea6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a704bb86dbbe0d27da14f6ddf2f42a3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfeca3801be95cb9e4dcd05b31fc4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 已知
,
,
为正数,函数
.
(1)若
,求
的最小值;
(2)若
且
,
,
不全相等,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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63cd0a3c1949b8f0d6a7e2ee800e6ba5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b65e19e487ed609540dcbdac3fda53e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.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/8085ee9ed7e55a17ef4f1a78106c6f62.png)
您最近一年使用:0次
解题方法
8 . 已知函数
.
(1)求函数
的最大值
;
(2)在(1)的条件下,设
,
,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b579f06fb171212d46ff13b34c799cbc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66447df9b4f5e2c38105dcca68a9cf5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)在(1)的条件下,设
![](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/c74f20dea2c60850351322b75fa0dc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d28bdcdb40f4e36d6d7144f8ce68e3d.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)求不等式
的解集;
(2)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a990dc3d6cdaf2e46a6280da911820.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffecaf147a7feb14d815c6194e10811.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90360d4290229984a4c446c2946768d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
10 . 已知
,
,且
.
(1)求
的最小值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c2df9543359efcaf571c5151b76596.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f164e2348de7d9967b1832004db124.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99293020b1f6a4a745d27587719ae28b.png)
您最近一年使用:0次