解题方法
1 . 三角形ABC中,
,点E是边BC上的动点,当E为BC中点时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3860b36c77e1d581c19c8ecafe8fc0cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/a27be820-ae1b-4578-88d1-351f8215ab8f.png?resizew=182)
(1)求
和
;
(2)
是
延长线上的点,
,当
在
上运动时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af32ecdc0dc2f1a60b47f3311a0587d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3860b36c77e1d581c19c8ecafe8fc0cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/a27be820-ae1b-4578-88d1-351f8215ab8f.png?resizew=182)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198961ca89e8f8ba15da35191f0e30e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552c18d2d32482e139666c24f11c2eec.png)
您最近一年使用:0次
2021-06-22更新
|
682次组卷
|
4卷引用:山东省六校(泰安一中、菏泽一中、章丘四中、东营一中、济宁一中、聊城一中、胜利一中)2020-2021学年高一6月“山东学情”联考数学试题
山东省六校(泰安一中、菏泽一中、章丘四中、东营一中、济宁一中、聊城一中、胜利一中)2020-2021学年高一6月“山东学情”联考数学试题(已下线)专题6.3 平面向量的应用(练)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)5.4 正、余弦定理(精练)(提升版)-21.6 解三角形测试
名校
解题方法
2 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765fb7403764984254cb84282bba51e.png)
(1)求
的坐标以及
与
之间的夹角;
(2)当
为何值时,
与
垂直?
(3)当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2765fb7403764984254cb84282bba51e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb1c1520a4e2174415a034a5dc11df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70925d3d8fabb8cd9320576df54cd055.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb735ff555cd2b35737d371baf35a0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f488c19579ceda5e4187b3fa5099c29.png)
您最近一年使用:0次
2020-12-22更新
|
695次组卷
|
3卷引用:山东省济宁市任城区2020-2021学年高一下学期期中数学试题