解题方法
1 . 已知O是
所在平面内一点,且
,
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42083f00cd68320e4e0275400c139551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8533b7d67a3d95340a8462819680367f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98db0299f88f80030e8b01debb45d8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
A. ![]() | B. ![]() | C.![]() | D.![]() |
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解题方法
2 . 在平面直角坐标系
中,已知直线
:
与圆
:
交于
两点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da08d6d27b6cf7ee1a9f49737bbb70de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a324c816e299f545ba3f31d37544d07d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a704469569b68ee11ab166dba3f686f0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知向量
,
,
满足
,
,
,
,则
的最小值等于( )
![](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/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787379f7ff8d24be7eebfea1cfe956d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd522bfa5a73cc24b727dfb9662bdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e412d0b40771fa45aa0a8d1ceb426bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca31f61e80a6b7a68b13f6a52b46217.png)
A.![]() | B.![]() | C.4 | D.![]() |
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4 . 已知坐标原点在直线
上的射影为点
,则为
必然满足的关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df10c927d23acb6afcc562968b24eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8750c7a9d012d136a878dc8f4233dfb7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知圆
和两点
,若圆
上存在点
,使得
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9559a632070d34da2177502ba979ca90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5facc60c7e2174ebdaae6604a8d3fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b768ea6a05cbf45b28fc46c501ba532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 已知点
,动点
满足
,若点
的轨迹与直线
有两个公共点,则
的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b55bea92edc3640119c60699765ae3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d5bb3031d527aa204fcbfb5de0f34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f918f3126b7fe52e2ffcd2917b8c994d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 过点
的直线
与圆
相交于不同的两点M,N,则线段MN的中点
的轨迹是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76943522d2b99a6275c7b4d54dd7f31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e7ddc76bbbccdbd17a78b57b662579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.一个半径为10的圆的一部分 | B.一个焦距为10的椭圆的一部分 |
C.一条过原点的线段 | D.一个半径为5的圆的一部分 |
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2024-06-11更新
|
109次组卷
|
2卷引用:贵州省贵阳市第一中学等校2024届高三下学期三模数学试题
名校
解题方法
8 . 已知
,若点P满足
,则点P到直线
的距离的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f01b186ac8aa73e1a3609b40b6c3ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5be0fcefb76a1958f482205475b351.png)
A.1 | B.2 | C.3 | D.4 |
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2024-06-10更新
|
535次组卷
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2卷引用:北京市中国人民大学附属中学2024届高三下学期5月热身练习数学试题(三模)
名校
9 . 设
,直线
与直线
相交于点
,点
是圆
上的一个动点,则
的最小值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df307146ad61d4bf105370f65a3e742c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d19b5f51544de84ec35a34a992ce114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd7a3c761ade49cc51ea60214af887e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581deb894aeb4b79cafc1a1b6394e875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d87446c9ef0230285d9b08127fce5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-10更新
|
76次组卷
|
2卷引用:陕西省西北工业大学附属中学2024届高三第14次高考适应性训练文科数学试题