名校
1 . 已知等差数列{an}满足a4=8,a6+a7=11,则a2=( )
A.10 | B.9 | C.8 | D.7 |
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9d18eb2a03df43481443cd805b4aa2.png)
.
(1)讨论
的极值点的个数;
(2)当
时,设
的极值点为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9d18eb2a03df43481443cd805b4aa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312782dee00de23c5fc034f10ec1515d.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f50963dee1591c1a143fc692b48976d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题
名校
3 . 如图所示,某城市为改善市中心
处的交通拥堵,欲规划一条新的地铁线路
,连接位于市中心
正北方向的某
地及东南方向的某
地,已知地铁
在
、
两地之间的部分为直线段,且在线段
上距离市中心
最近处另设一站
.
![](https://img.xkw.com/dksih/QBM/2020/11/21/2597572651982848/2598628838170624/STEM/9a916af6-3523-4c73-9580-345a30e51955.png)
(1)若
,求
的值;
(2)若
km,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/0c88d9142df6ba8e43c1a93bd04a1362.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2020/11/21/2597572651982848/2598628838170624/STEM/9a916af6-3523-4c73-9580-345a30e51955.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2e3ab9a3b0c32f5f939fc6dbf8d5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739734ca1058d32edcbc02401574cbb5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c78f77e5b86ccd537e5f027de9ffe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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5卷引用:重庆市江津中学2021届高三(上)期中数学试题
名校
解题方法
4 . 已知函数
,
.
(1)当
时,求
在
上的最大值和最小值;
(2)若
在
上单调,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b704f91bf094473a963c9f8a63e8a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5卷引用:重庆市江津中学2021届高三(上)期中数学试题
名校
解题方法
5 . 设数列
的前
项和为
,且
.
(1)证明:
是等比数列;
(2)令
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef7bd36b59f86231236fed3bddc5e40.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf3da897eb73b729f66bb0d700775c5.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add02169a8f58417880df4e302a7c498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215cac475bdbe358dd85bb612e10928c.png)
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题
名校
解题方法
6 . 已知函数
.
(1)求函数
的单调递增区间;
(2)在
中,角
,
,
所对的边分别为
,
,
,若
,
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c10a136cca0e19b765f1088a8279b8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](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/8a0d5cf8c22d0cf93274939d92963665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbb04c5e8cf9f5413ea1c0fd91606ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853322096dde564da68d75683f41d79a.png)
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5卷引用:重庆市江津中学2021届高三(上)期中数学试题
名校
解题方法
7 . 已知
,集合
,函数
的定义域为
.
(1)若
,求
的取值范围;
(2)若
是
的必要不充分条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea45f50caa9b68052252788e52c63263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b317ab24a58bcc5fbbf66651e78157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c6551ee063ba33d1896f24275f921a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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11卷引用:重庆市江津中学2021届高三(上)期中数学试题
重庆市江津中学2021届高三(上)期中数学试题重庆市江津中学校2021届高三上学期11月调研数学试题重庆市2021届高三上学期期中数学试题甘肃省平凉市2023届高三上学期期中数学(文科)试题四川省康德2020-2021高三11月数学试题重庆市秀山高级中学2022届高三上学期10月月考数学试题吉林省长春市第二十九中学2020-2021学年高二上学期期末考试数学(文)试题河南省濮阳市南乐县第一高级中学2021-2022学年高二下学期3月月考文科数学试题甘肃省白银市、定西市等3地2022-2023学年高一上学期期末数学试题江苏省徐州市沛县2022-2023学年高二下学期5月第二次学情调研数学试题河北省廊坊市广阳区廊坊华一传媒学校2022-2023学年高一上学期期末数学试题
名校
8 . 已知
,函数
,若
,使得
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0310689f23d8c0f257b6fd3ca9f6769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c002d7bb05e1511270c47cd226afa1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1a545e9fb20064ba34b92e76a8193a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题
9 . 二进制数是用0和1两个数码来表示的数,它是现代信息技术中广泛应用的一种数制,它的基数为2,进位规则是“逢二进一”,借位规则是“借一当二”,它与十进制数可以互相转化,如二进制数1011(记为
)表示的十进制数为
,即
,设各项均为十进制数的数列
的通项公式为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0f3ff54189055e3dd6b7df6c00b5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ecd8e3bcd890c3c37e932a68b01ff88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8befff2d514d7507ad065154f082ed2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef64b4fb40f963bf60cdfb03786fa30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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4卷引用:重庆市江津中学2021届高三(上)期中数学试题
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10 . 已知
,
,且
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0552356ba4e57983911aa559ecc4012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf9f16560a4344b5f1de3db84df6b42.png)
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