名校
1 . 若
的展开式中常数项为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb50b6fbe737e673500d92bed1a6d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
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2024-04-14更新
|
801次组卷
|
4卷引用:贵州省毕节市2022届高三上学期诊断性考试(一)数学(理)试题
2 . 已知实数x,y满足约束条件
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d9e6da32e38ae511116f5ca1681589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf476c02d2daf040383de09de1baa79.png)
A.![]() | B.-1 | C.![]() | D.![]() |
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解题方法
3 . 已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若对任意
,存在
,使得
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb84fe64f3e7454332ef17e582077a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a67a908b144108878ec55332f3da43.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6feeaebbb206ac2f44afc4b531f881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35c5b975136fa2768b970c4f5c3131e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
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解题方法
4 . 设△ABC的内角A,B,C所对的边分别为a,b,c,
,且
.
(1)求证:
;
(2)求△ABC面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79998787e2d78b13494915896c446d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b409809543bae9f5e231a83e515dbbf.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66cbc9e5601178878c36c4f744bffa1.png)
(2)求△ABC面积的最大值.
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名校
解题方法
5 . 如图,在正方体
中,E是棱
上的点(点E与点C,
不重合).
(1)在图中作出平面
与平面ABCD的交线,并说明理由;
(2)若正方体的棱长为1,平面
与平面ABCD所成锐二面角的余弦值为
,求线段CE的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/28/44e1db2d-3cdb-4d89-8b8d-4c6809dd2361.png?resizew=153)
(1)在图中作出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)若正方体的棱长为1,平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9662368fd788afb77b79035cdd268b.png)
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2023-06-24更新
|
583次组卷
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4卷引用:贵州省安顺市2022届高三第一次教学质量监测统一考试数学(理)试题
贵州省安顺市2022届高三第一次教学质量监测统一考试数学(理)试题黑龙江省大庆市萨尔图区第二十三中学2022-2023学年高二下学期期末数学试题(已下线)1.4.2 用空间向量研究距离、夹角问题(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)江西省上饶市广丰区私立康桥中学2023-2024学年高二上学期期末模拟数学试题
6 . 如图,为测量某雕像AB的高度(B,C,D,F在同一水平面上,雕像垂直该水平面于点B,且B,C,D三点共线),某校研究性学习小组同学在C,D,F三点处测得顶点A的仰角分别为
,
,
,
米.
(1)求雕像AB的高度;
(2)当观景点C与F之间的距离为多少米时,△CDF的面积最大?并求出最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53e3cd4566cc35d715806d5fca506db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/2a63eb2c-12e5-4e46-a71c-7846e4f7c5b5.png?resizew=176)
(1)求雕像AB的高度;
(2)当观景点C与F之间的距离为多少米时,△CDF的面积最大?并求出最大面积.
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解题方法
7 . 在等比数列
中,已知
,
.
(1)求数列
的通项公式;
(2)设
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8e8f821111de8075e5c3dfb22a5d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135c20407aa59f589f9e2e837fc37b2.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3271dddb9124f7c27909b821bd3d09e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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8 . 已知正三棱柱
内接于球O,若该三棱柱的体积是
,则球O表面积的最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
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解题方法
9 . 若定义在
上的函数
,对任意
,都有
,则称
为“
函数”.
现给出下列函数,其中是“
函数”的有______________ .(填出所有正确答案的序号)
①
;
②
;
③
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5c9fe631faa998ecc75f9d556f418c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
现给出下列函数,其中是“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c401742c4e0f2757772a695fa0df6c4.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff9681471371af6e3d0934caee1004.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2094ab8328068098a679e08164392e54.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e7cbca65688a86ba55b2c73ac62b03.png)
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解题方法
10 . 已知点
是以
为直径的圆上任意一点,且
,则
的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83b9f01e806bf74042ba41b26423022.png)
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