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1 . 设a,b,c,d为实数,且
,则下列不等式正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a297977dc2f26f5a3109f824fdc9699.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知等比数列
中,
,
,则公比
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1323c6f226d29ebf62e2c9461ce19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73abda0b2c65194421a02d6dc1380f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.![]() | B.2 | C.![]() | D.4 |
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3 . 在
中,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96d6caf372329efd9f7fc0198838baf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264381eddf150479287e20be0007ef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
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4 . 已知
且
,
.则下列关系一定成立的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4194589915a694e5aaecc401b9ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 记
的内角
的对边分别为
,
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b939bf0591883ab80d9e58a03718c79.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/a830ae6b272d18d1a1261dd423b032a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b939bf0591883ab80d9e58a03718c79.png)
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6 . 已知
,
,
,
,
成等比数列,且2和8为其中的两项,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
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7 . 如图,一辆汽车在一条水平的公路上向正西行驶,到
处时测得公路北侧一山顶
在西偏北
的方向上,行驶
后到达
处,测得此山顶在西偏北
的方向上,仰角为
,则此山的高度
为( )
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0ed18bdcdc50e3b52b9366db524d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5980537b6c24aba358236446e7135daa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0572a9bd316c92391d73b095df65e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0ed18bdcdc50e3b52b9366db524d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-11更新
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333次组卷
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2卷引用:湖南省常德市第一中学2023-2024学年高一下学期期中考试数学试题
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8 . 一艘船以32 n mile/h的速度向正北方向航行.从A处看灯塔S位于船北偏东
的方向上,30分钟后船航行到B处,从B处看灯塔S位于船北偏东
的方向上,则灯塔S与B之间的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4c9b697e3df2b5469b71d3b5e47a2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-11更新
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5卷引用:湖南省永州市部分学校2023-2024学年高一下学期6月质量检测卷数学试题
湖南省永州市部分学校2023-2024学年高一下学期6月质量检测卷数学试题江苏省南通市2023-2024学年高一下学期5月质量监测数学试题(已下线)专题03 解三角形问题总结-《期末真题分类汇编》(江苏专用)(已下线)难度1 小题强化限时晋级练(高一期末题型专项)天津市武清区杨村第一中学2023-2024学年高一下学期第三次月考数学试卷
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解题方法
9 . 在
中,角A,B,C的对边分别为a,b,c.点M是
的内心.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75835ac147d3ab1a8a54f06d1271873d.png)
,则
的最小值为______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75835ac147d3ab1a8a54f06d1271873d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04baa4bae5d52fe9d106aab4334a026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a60237e8d1bca2cbfcabbcef530b7d1.png)
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10 . 已知在各项均为正数的等差数列中,有连续四项依次为m,a,4m,b,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
A.![]() | B.![]() | C.![]() | D.4 |
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2024-05-08更新
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909次组卷
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