1 . 若
满足约束条件
,则目标函数
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14be2495bc9d2d2fe35d48af95b4b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aba3f06a47c86b096f284cde5270594.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 在等差数列
中,
,且
不大于
,则
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c8ef53523975056a08fa9c6ac9b219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
923次组卷
|
6卷引用:2016届陕西省安康市高三第三次联考文科数学试卷
2016届陕西省安康市高三第三次联考文科数学试卷智能测评与辅导[文]-等差数列2020届陕西省西安市高新一中高三第五次模拟考试数学(文)试题(已下线)2.2等差数列(1) -2020-2021学年高二数学课时同步练 (人教A版必修5)(已下线)4.2.1 等差数列的概念(精练)-2020-2021学年一隅三反系列之高二数学新教材选择性必修第二册(人教A版)(已下线)4.2.1 等差数列(1)-2020-2021学年高二数学课时同步练(人教A版选择性必修第二册)
3 . 如图,在四边形
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/763e5dbc-227d-44bf-a330-e30fb607f77e.png?resizew=127)
(1)求
;
(2)求
及
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777967534d652db7c3b325a230ac1b07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4587875741c822efaec68ced242d5454.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/763e5dbc-227d-44bf-a330-e30fb607f77e.png?resizew=127)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0631374bf6479204a48d384b30bab46a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2016-12-04更新
|
1143次组卷
|
2卷引用:2016届陕西省安康市高三第三次联考理科数学试卷
4 . 已知
为数列
前
项和,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/7b9c64ec52ecac2558f90bcd09f0df30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7f02f7968948268e58a55ec32119ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
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解题方法
5 . 已知实数
满足
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552f386be364c7b137dfbbfad12964a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
您最近一年使用:0次
2016-12-04更新
|
269次组卷
|
2卷引用:2016届陕西省安康市高三第三次联考理科数学试卷
解题方法
6 . 若
是等比数列
的前三项,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34447968c8f7a8f07db162c088aa98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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