1 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff182df5607e90450d212afd997b7523.png)
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff182df5607e90450d212afd997b7523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ef9f7f62c00bf7d33d53872472c35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b988d81f63ca329c85840e030f6505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-08-23更新
|
749次组卷
|
2卷引用:河北省张家口市2019-2020学年高三11月阶段检测数学(文)试题
名校
2 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ecfa5aeaf5388f8780b0f960d330ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-08-23更新
|
1180次组卷
|
7卷引用:2019年10月江西省高三第一次大联考数学(文)试题
3 . 如图,已知⊙O的直径AB与弦AC的夹角为35°,过C点的切线PC与AB的延长线交于点P,那么∠P等于( )
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449266688/STEM/304ffc3c6e624c8fa4f26438214df6eb.png?resizew=107)
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449266688/STEM/304ffc3c6e624c8fa4f26438214df6eb.png?resizew=107)
A.15° | B.20° |
C.25° | D.30° |
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4 . 如图,PA是⊙O的切线,A为切点,PC是⊙O的割线,且PB=
BC,则
等于( )
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449258496/STEM/7c9a74053fb14ddbbf745b63add9ce9a.png?resizew=111)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccc2f02416db8211128e18af2d13ecf.png)
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449258496/STEM/7c9a74053fb14ddbbf745b63add9ce9a.png?resizew=111)
A.2 | B.![]() | C.![]() | D.1 |
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2011·广东深圳·一模
5 . 已知圆面
的面积为
,平面区域
与圆面
的公共区域的面积大于
,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab12dc10145236042e5cc895064cc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce0a5282d7bd2c6e54f6113c84438ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b9cf868dc77759a01d2f550d6ab291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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