名校
1 . 如图所示,在平面直角坐标系中,点A,B分别在x轴,y轴的正半轴上运动,已知
,
,
,当A,B运动时,
周长的最大值为______ ;M为线段AB的中点,H为直线OC上一点,若
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e4cde1ed9438622032fcb540b14c8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff47046e72a35e9ec4854b22bfbcd7bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e4f55c9c031c394638c238cdb05af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82cd9008ec05183fd2843087fdbd59a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8b65574a120dcdd18285da2a44c969.png)
![](https://img.xkw.com/dksih/QBM/2022/2/18/2919180628123648/2958695159799808/STEM/a87c137d-6657-47f5-988b-0571dca3730d.png?resizew=170)
您最近一年使用:0次
2022-04-15更新
|
751次组卷
|
2卷引用:山东省部分学校2021-2022学年高三下学期2月份联考数学试题
解题方法
2 . 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
|
685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