1 . 已知函数
在
处取得极值,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd38d84190690fe504610eafb6395b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.1 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
2 . 已知定义在
上的函数
,其导函数为
.若
,且当
时,
,则不等式
的解集为( )
![](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/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd574d0f4ce3aaa484ae91b67aac9b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40d17b219bb3586966e12d821d3e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2df76a7a4b17e10f81f5a0def4534a3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 用反证法证明命题“已知
,
为实数,若
,则
,
中至少有一个小于3”时,提出的假设为( )
![](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/985cf79e0ede4a8b15303aa767ee3218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
4 . 已知
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b09390f3bd3482563101218a9232c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67a1c6992040a2d85b21dd18fd32439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9ca23129ab7cfead84c183d0ee1bff.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)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24496a380ce63ded97648ca90058423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a338af06b5033e9d2e40d44f1b9a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
是定义在R上的奇函数,且满足
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d78dec1c1e00ec02d7bdaf76ef8901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
A.-2 | B.0 | C.1 | D.2 |
您最近一年使用:0次
解题方法
7 . 复数
(
为虚数单位)对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e487a56a966bf1240b48de97453696f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
您最近一年使用:0次
8 . 自古以来,斗笠是一个防晒遮雨的用具,是家喻户晓的生活必需品之一,主要用竹篾和一种叫做棕榈叶染白后编织而成,已列入世界非物质文化遗产名录.现测量如图中一顶斗笠,得到图中圆锥
模型,经测量底面圆
的直径
,母线
,若点
在
上,且
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/7a2dbbf1-3a38-4a6d-87a7-f1087f1c6cf7.png?resizew=246)
(1)证明:
平面
;
(2)求直线
和平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd20754e7a429dfa1e87eeff0907e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0edce4f127d8f2da994e2ea78e4dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1721f5eb9a589d1185a3d1dd225f6a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2022/6/28/3011148409806848/3012440204394496/STEM/0da52f64d14645c7973f32be7d69a9e4.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/7a2dbbf1-3a38-4a6d-87a7-f1087f1c6cf7.png?resizew=246)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002cc6a0373255f39172cdee62fb6b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15b63176f43bc7a0654d0f6f45e7429.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15b63176f43bc7a0654d0f6f45e7429.png)
您最近一年使用:0次
名校
解题方法
9 . 已知向量
,
,若
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ced2d0a47bde59255f1adfe9a7252bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5e4efc407661df4257f9e787a20670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03481e6a73207be03fdbc1f8e9965b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.4 | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
2022-06-30更新
|
397次组卷
|
2卷引用:江西省赣州市2021-2022学年高一下学期期末考数学试题
名校
10 . 已知某扇形的周长是
,面积是
,则该扇形的圆心角的弧度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0c23da3570f7f3e0b32f531348f9af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a77705a833ceed916aff66e479e3bef.png)
A.1 | B.4 | C.1或4 | D.1或5 |
您最近一年使用:0次
2022-06-30更新
|
1362次组卷
|
5卷引用:江西省赣州市2021-2022学年高一下学期期末考数学试题