解题方法
1 . 已知向量
,
,其中
.
(1)若
,写出
,
,
,
之间应满足的关系式
(2)求证:
;
(3)求代数式
的最大值,并求其取得最大值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300b10194024b776bc5985a76c4021a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b39fbfa2a3a5e3715e3a5855334e143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b398c3c2ffc0b9a08211fcacc87fa7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f709a55cf756727bc6811bc239718281.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c184edd63472d8ddf96e5f815515d929.png)
(3)求代数式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048e10bf2ade5fd58144d6b952cdd717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
解题方法
2 . 设向量
,
.
(1)求
;
(2)若
,
,
,求证:A,
,
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a25d09a7e1ee223732e9ed44b6c904f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bca60b07ee7b853a581d58c7e0d1077.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84455ce96bb8ec069286945271a1697.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fabf836a5eb2105f5a32160b75640c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf2c84fec9a927dbaffaf6ab355fbb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad97bd41cab871da2c561b5a12f8f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2022-04-08更新
|
289次组卷
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2卷引用:贵州省遵义市第二十一中学2022-2023学年高一下学期第一次阶段性考试数学试题
名校
3 . 在平面直角坐标系中,
为坐标原点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7024cce1d5c725910f6ba2e08bf6c8.png)
其中
.
(1)求证:
三点共线;
(2)若函数
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7024cce1d5c725910f6ba2e08bf6c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628ca75d4be0305453035fa613704921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771ca8cf4b1c1d8de5ecd33555e4370e.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debd3b179cd3a1165bce25f3c48e4595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e75c9db745dc00e734a1ef487bd368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-07-23更新
|
174次组卷
|
2卷引用:贵州省黔西南州金成实验学校2021-2022学年高一下学期4月质量监测数学试题