1 . 如图,在平行四边形ABCD中,
,
,
,
,
,
(1)求
的值;
(2)若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8a8c17891ffbda9b616bee26d67e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e503b5f39429c162a82f047195e294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a5052f89125e4e26d2bfcc6273cb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5043cd88f58eca07a3e426d89082b176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b340bc0436599e2da6d3a807d7783e43.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/44de8d7b-cbc9-42f2-84ce-9a427828d03c.png?resizew=140)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b113dc271cf51b3018bd1de14edf73ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9eac78c0579af0ee08a09112453bbb.png)
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解题方法
2 . 已知在
中,
,
是
的垂心,且满足
,则
的面积
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15a6d3beb1428c30ba398200d94cf19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbad2fa5338bbc54e4b6fda58c711e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acd3ee01d9f843a8579ffb0b7d9d82.png)
A.![]() | B.8 | C.![]() | D.4 |
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解题方法
3 . 设向量,
,
,则
( )
A.![]() | B.![]() | C.![]() | D.10 |
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解题方法
4 . 求实数
的值或取值范围,使得复数
分别满足:
(1)
是纯虚数;
(2)
是复平面中对应的点位于第二象限.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e66c9ef047cf38c978b14a77962ca7.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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解题方法
5 . (1)已知平面向量
与
的夹角为
,
,
,求
的值.
(2)已知
,
,且向量
与向量
的夹角
,求向量
在向量
上的投影向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19702ae2c72308f9973ae4c77a62a72e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404067afb19bd74f447a6c0c832af1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596a3ee5d8473fc6619ea7730e13325b.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa3610a990287d3ac756abae406540d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e405db6c09d6ab5739cabbb63cd3b3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd15ead753cf2927f51d07c7727c6cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
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6 . (1)利用“五点法”画出函数
在长度为一个周期的闭区间的简图.
列表:
作图:
的图象经过怎么变换得到的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc488b43a6f9fe64fa30a4f8ee2d1fc.png)
列表:
x | |||||
y |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ad672c139fa8979e35f789fd43e275.png)
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解题方法
7 . a、b、c为△ABC的三边,下列条件能判定△ABC为等腰三角形为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
8 . 窗花是贴在窗子或窗户上的剪纸,是中国古老的传统民间艺术之一,图1是一个正八边形窗花隔断,图2是从窗花图中抽象出的几何图形的示意图.如图2,正八边形ABCDEFGH内角和为1080°,若
(
,
),则
的值为____________ ;若正八边形ABCDEFGH的边长为2,P是正八边形ABCDEFGH八条边上的动点,则
的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c453c3b096207222485c01cb0a6059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cefeddff52b02a43831beeb4bb6faa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83b9f01e806bf74042ba41b26423022.png)
您最近一年使用:0次
2023-08-06更新
|
746次组卷
|
15卷引用:云南省昆明市官渡区云南大学附属中学星耀学校2022-2023年高一下学期期中考试数学试题
云南省昆明市官渡区云南大学附属中学星耀学校2022-2023年高一下学期期中考试数学试题江苏省常州市联盟学校2022-2023学年高一下学期3月学情调研数学试题江西省宜丰中学创新部2023-2024学年高一上学期第一次(10月)月考数学试题山东省菏泽市鄄城县第一中学2023-2024学年高一下学期3月月考数学试题(已下线)第一次月考卷02-《重难点题型·高分突破》(人教A版2019必修第二册)江苏省南京市河西外国语学校2023-2024学年高一下学期3月月考数学试卷重庆市杨家坪中学2023-2024学年高一下学期3月月考数学试卷重庆市松树桥中学校2023-2024学年高一下学期第一次段考数学试题黑龙江省牡丹江市第二高级中学2023-2024学年高一下学期4月月考数学试卷广东省江门市第一中学2023-2024学年高一下学期第一次阶段考试数学试题(已下线)模块四期中重组篇云南(高一下人教B版)天津市十二区重点学校2023届高三下学期联考(二)考前模拟数学试题(已下线)第93练 计算速度训练13(已下线)数学(天津卷)天津市北师大静海附属学校2024届高三上学期第三次月考数学试题
解题方法
9 . 如图,在三棱柱
中,
底面ABC,
,
,
,M,N分别为BC,
的中点,P为侧棱
上的动点
(1)若P为线段
的中点,求证:
∥平面APM;
(2)试判断直线
与平面APM是否能够垂直.若能垂直,求PB的值:若不能垂直,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db57eca2a7cbd91bc57372592580a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/7/52317501-2269-4239-83a1-4fa9b6a787ea.png?resizew=163)
(1)若P为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
(2)试判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
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解题方法
10 . 如图,在
中,
,且
.
(1)求
的值;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babaf75403544eeadb1c489f02a5c07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/8/5d502366-43e2-499b-90b1-e9cf0df2954a.png?resizew=143)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d34198d24fd3ee8dfc0f81a5479b6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次