名校
1 . 在平面直角坐标系中,定义
为点
到点
的“折线距离”.点
是坐标原点,点
在圆
上,点
在直线
上.在这个定义下,给出下列结论:
①若点
的横坐标为
,则
; ②
的最大值是
;
③
的最小值是2; ④
的最小值是
.
其中,所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c913b3abbf53d81fcf25bf83d4ae3756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a39648cb8036d9773c2fcc145e6270.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f8657de54481172ca9179c88c0c4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201d8506de64d612f80e105699a6ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4298f459599feb1a5ed4dce607b8e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03bcb3d0bea7a8b834bbbb1cbef7ab7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32286c3865f06865920816e7685c497a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
其中,所有正确结论的序号是
您最近一年使用:0次
2 . 方程
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7524dd62ee0e199b1ccf3c1351fac8c.png)
您最近一年使用:0次
名校
3 . 若
,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec5077b22a7ee180c7e7d43ff117eb8.png)
您最近一年使用:0次
2022-11-12更新
|
306次组卷
|
3卷引用:上海市杨浦高级中学2023-2024学年高一上学期期末考试数学试卷
名校
4 . 函数
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb547ecd6fd721ab57be288846e44cc.png)
您最近一年使用:0次
名校
5 . 对于平面直角坐标系内的任意两点
,
,定义它们之间的一种“距离”
.已知不同三点
,
,
满足
,给出下列四个结论:
①
,
,
三点可能共线.
②
,
,
三点可能构成锐角三角形.
③
,
,
三点可能构成直角三角形.
④
,
,
三点可能构成钝角三角形.
其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11261f044780f4682f3015ac3130ce52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565da23b62d40cc1905bf63f841046c2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
其中所有正确结论的序号是
您最近一年使用:0次
2021-01-20更新
|
602次组卷
|
3卷引用:北京市丰台区2021届高三上学期期末数学试题
北京市丰台区2021届高三上学期期末数学试题(已下线)第9章 平面向量(能力提升)-2020-2021学年高一数学单元测试定心卷(苏教版2019必修第二册)北京市昌平区第一中学2021-2022学年高二上学期期中考试数学试题
19-20高一·浙江杭州·期末
解题方法
6 . 若函数
在
上的最小值为15,则函数
的最小值为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7259d5543a0b57584daf03ca6f4fc636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0520c440fb6ecb748f6cc66da6cc55.png)
您最近一年使用:0次
解题方法
7 . 已知
且
, 则
的最小值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b34235e6b85669bbb8cd27ad501c440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9168c330b9ace4da50f76cb1a8d06ce4.png)
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2020-07-11更新
|
197次组卷
|
2卷引用:浙江省衢州市2019-2020学年高二下学期6月期末教学质量检测数学试题
解题方法
8 . 设
,如果
恒成立,那么实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af99b68254d7e278df392e4399589c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-06-26更新
|
202次组卷
|
3卷引用:山西省朔州市怀仁县大地学校2019-2020学年高二下学期期末文科数学试题
9 . 关于
的不等式
恒成立,则
的取值范围为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb674f9d2f1bafbcd2cba30e68ebd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 若
,则
的最大值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c407d88b8bd0b3e53a69fdcb005247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f55cd72ce17c3c1d5592b764dbbfb76.png)
您最近一年使用:0次