名校
1 . 下列命题中,真命题的是( )
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2024-06-12更新
|
971次组卷
|
3卷引用:山东省滨州市2024届高三下学期二模数学试题
2 . 已知等差数列
的前n项和为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b7f9356a62bd838dacf5046b03b30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9620357ea5be4037cfdccd09a27d3862.png)
A.6 | B.7 | C.8 | D.10 |
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2024-03-08更新
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1532次组卷
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4卷引用:2024届山东省滨州市一模联考数学试题
3 . 已知数列
满足
,
.若数列
是公比为2的等比数列,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28016c7fb3404fee5e9e84dbb02e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd21f4cb498101d26b4aaa2e1a6addc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-07更新
|
2060次组卷
|
3卷引用:2024届山东省滨州市一模联考数学试题
解题方法
4 . 已知直线
与圆
相切,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0c0fa62a09c0532bafe39a7c935ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
A.![]() | B.![]() | C.1 | D.2 |
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5 . 已知
,
,
,
为平面
内的四点,其中
,
,
三点共线,点
在直线
外,且满足
.其中
,则
的最小值为( )
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022418dd0efc0824f275bd769184620a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af356f06cdcbb6921c4d88c7c8f7100.png)
A.21 | B.25 | C.27 | D.34 |
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6 . 在△ABC中,内角
,B,C所对应的边分别为a,b,c,
,
的平分线交
于点
,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://img.xkw.com/dksih/QBM/2019/12/5/2348829394829312/2349911217528832/STEM/af00f41a4ac844e2ab3a96cacdf4ad2c.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9ad150cb1e4cd8977d4cc3d99be17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74094c51b5ee19992e12e98bfab66d77.png)
A.4 | B.5 | C.![]() | D.![]() |
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2019-12-07更新
|
716次组卷
|
4卷引用:【市级联考】山东省滨州市2019届高三第二次模拟(5月)考试数学(理)试题
【市级联考】山东省滨州市2019届高三第二次模拟(5月)考试数学(理)试题(已下线)专题7.3 基本不等式及其应用(练)【理】-《2020年高考一轮复习讲练测》四川省成都市射洪县2018-2019学年高一(英才班)下学期期末能力素质监测数学(理)试题(已下线)第27练 基本不等式及其应用-2021年高考数学(理)一轮复习小题必刷
7 . 已知正方体
的棱长为1,
是线段
上一动点,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d451f2e95ddc484d23265e164911eaf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 赵爽是我国古代数学家、天文学家,大约在公元222年,赵爽为《周髀算经》一书作序时,介绍了“勾股圆方图”,亦称“赵爽弦图”(以弦为边长得到的正方形是由4个全等的直角三角形再加上中间的一个小正方形组成的).类比“赵爽弦图”,可类似地构造如图所示的图形,它是由3个全等的三角形与中间的一个小等边三角形拼成的一个大等边三角形,设
,若在大等边三角形中随机取一点,则此点取自小等边三角形的概率是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/e4b4bb55-dbb6-40a1-9b5b-aae897335d2d.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6c6426f8f8826f3f15e20fda9e1cfe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/e4b4bb55-dbb6-40a1-9b5b-aae897335d2d.png?resizew=180)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-05-14更新
|
441次组卷
|
2卷引用:【市级联考】山东省滨州市2019届高三第二次模拟(5月)考试数学(理)试题
解题方法
9 . 在
中,角
所对的边分别为
.若
,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516983449108347c9bbf5dd2a72ab3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1c134bf3ac8e005c36d992a0779e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.1 | B.2 | C.![]() | D.![]() |
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10 . 设变量
满足约束条件
则
的最大值为
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572674305785856/1572674311593984/STEM/63e47e64e1dd4ad8ace10214fc7e807b.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572674305785856/1572674311593984/STEM/3085cfc429ef4c58ae2becd82d3186ba.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572674305785856/1572674311593984/STEM/d7db7faefb3549f69ad307fde62540bc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次