已知点
,若直线
与线段
相交,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfa670eae7cb9db7ede0c52dc8d45fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536df29671676f943ede34fc11c4e468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
更新时间:2017-02-28 14:20:58
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相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】若变量
满足条件
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cd93a399a9ae19f6390f46c7a1213c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
名校
【推荐2】设
,点
,过点
引圆
的两条切线
,
,若
的最大值为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e34add289b07449e36ecb27084812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daad2a9375dbb1403404bb346b4975df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693264139569db1c982e5ab03177912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
A.2 | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
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解题方法
【推荐1】已知不等式组
所表示的平面区域为D,若直线
与平面区域D有公共点,则实数k的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d090ff02b1367bbac9439d031b161bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231896d2386c924306fce5ccf9f9e8a7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
解题方法
【推荐2】若直线
上不存在 点
的坐标满足条件
,则实数
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51cc2e933f43be34545f046c9026a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次