名校
解题方法
1 . 在
中,a,b,c分别为内角A,B,C的对边,且a,b,c成等比数列.若
,则
的外接圆面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed6c50be75280be8605ffa7daa93070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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817次组卷
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5卷引用:2018年清华大学暑期营数学试题
名校
2 . 已知函数
.若
在区间
上单调递减,则
的一个取值可以为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e27622ba31e95ef3170db3fc2c255ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956d6da85461ea10a9aa998921a64ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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2023-04-04更新
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1523次组卷
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6卷引用:北京市海淀区2023届高三一模(期中)数学试题
3 . 在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2a8bf5e05a07c93a7104839fc21849.png)
__________ ;
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52feacd23b361d0eee236d68232db4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2a8bf5e05a07c93a7104839fc21849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
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2023-03-29更新
|
1053次组卷
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5卷引用:北京市房山区2023届高三一模数学试题
4 . 设
,其中
.当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7e2d3929980cba9f153e991cf4bfe8.png)
____ ;当
时,
的一个取值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca8c98a5587bdbb372d412e92029b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6ce73930391278b35e97d58226aacc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64998ca9cdcc43498d3d0499af984b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7e2d3929980cba9f153e991cf4bfe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19efd2f2662ca444c784b69e35f53120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd927b4b5a7875528c1b54aa4bb8b2dd.png)
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2023-03-27更新
|
1293次组卷
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5卷引用:北京市西城区2023届高三一模数学试题
名校
5 . 在
中,
,
,
.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
________ ;
(2)当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ (写出一个可能的值)时,满足条件的
有两个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e7c12bff76b3a3151dc3e392c60d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197815002f96f29fed143246066d0593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d40f2363ae9efb7d5ce8e2b9077cb1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94174f37421d296a192b2df66c05f875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-03-27更新
|
1421次组卷
|
8卷引用:北京市朝阳区2023届高三一模数学试题
名校
解题方法
6 . 已知函数
的部分图象如图1所示,
、
分别为图象的最高点和最低点,过
作
轴的垂线,交
轴于
,点
为该部分图象与
轴的交点.将绘有该图象的纸片沿
轴折成直二面角,如图2所示,此时
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
①
;
②图2中,
;
③图2中,过线段
的中点且与
垂直的平面与
轴交于点
;
④图2中,
是
及其内部的点构成的集合.设集合
,则
表示的区域的面积大于
.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3502cd5c18938713a23568f4376f529a.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d363758a1cc53a47db20561e40638692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d696a13ce341d37e0718952360e70a7.png)
②图2中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258974db8fea723fee4c44d5765948e5.png)
③图2中,过线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
④图2中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2df93bd15f25096c510b589aad0dfc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca68f5844774382023d1cdcadef46038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
其中所有正确结论的序号是
您最近一年使用:0次
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|
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|
12卷引用:北京市东城区2023届高三一模数学试题
北京市东城区2023届高三一模数学试题专题12压轴题汇总(10、15、21题)专题03三角函数与解三角形专题08空间向量与立体几何北京卷专题06三角函数(填空题)北京市海淀区首都师范大学附属中学2024届高三上学期10月阶段检测数学试题(已下线)模块七 第6套 迎接高考之必做基础热身题( 概率与立几)北京工业大学附属中学2022-2023学年高一下学期期中考试数学试题新疆乌鲁木齐市第一中学2024届高三上学期第二次月考数学试题(已下线)空间向量与立体几何北京高一专题09立体几何(已下线)第8题 由空间距离求夹角(压轴小题)
7 . 在
中,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dae9602cc5e036819b212ef2191ba37.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dae9602cc5e036819b212ef2191ba37.png)
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2023-03-24更新
|
1483次组卷
|
3卷引用:北京市2023年第一次普通高中学业水平合格性考试数学试题
名校
8 . 在平面直角坐标系
中,单位圆上三点A,B,C满足:A点坐标为
并且
,
在
上的投影向量为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0915c8cfb1974f15511f7c3a8b72a0d2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321d3d9e48d28d7673bf36169702632f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0915c8cfb1974f15511f7c3a8b72a0d2.png)
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2023-03-20更新
|
604次组卷
|
2卷引用:北京市北京师范大学附属实验中学2023届高三数学零模试题
名校
9 . 已知函数
(
,
,
是常数,
,
).若
在区间
上具有单调性,且
,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76374954e084e4a2818e311ef99223e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c0e22c48a3d12a075b08cbdf672444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0f6c8f47a1f8effb4e597b384f8404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2023-03-13更新
|
361次组卷
|
2卷引用:北京市第二中学2023-2024学年高三下学期开学考试数学试卷
名校
10 . 已知函数
,
.
(1)写出一个
的值________ ,使得函数
在
上恰有两个零点;
(2)若
,
,使得
,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a056750e923b469cc9be74aff248fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dce2bfe6e1fde9265d2a07c42bbdf58.png)
(1)写出一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bccd6a6e85bdf500218a3e75b31f3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650566b874adcfe4ed60c99eab3fbcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7409b8e4b38636929d90f0ac54b2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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