名校
解题方法
1 . 设
,
是两个不共线的向量,若向量
与
的方向相反,则实数k=___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3f8c3279e03e05590144251e83ff71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83365da7df5e63b9c2fe5c47cfc2219.png)
您最近一年使用:0次
解题方法
2 . 已知空间向量
,
,
,且
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab10311f5cba45f0f7e7962c11c6301e.png)
______ .
![](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/4ea57a7232132407f26d1a6b61453660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6f1c4044da986c00c2367ea8b5ade7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc9c22e445fd2e7d7e33f87116dbd1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab10311f5cba45f0f7e7962c11c6301e.png)
您最近一年使用:0次
2022-11-17更新
|
288次组卷
|
2卷引用:山西省部分名校2022-2023学年高二上学期期中联考数学试题
解题方法
3 . 在
中,
为
的中点,
为线段
上一点,若
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3a00b8c4d2a742301838a04a2c22d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
4 . 在△ABC中,点D满足
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a53da65c14e9ab0ee6351377136e916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f92aef16f5f17f7613e92f34c38e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
您最近一年使用:0次
2021-08-14更新
|
785次组卷
|
5卷引用:北京市海淀区2020-2021学年高一下学期期中数学试题
名校
解题方法
5 . 在三角形
中,已知
是
的中点,
是三角形
的重心.设向量
,
,则向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da748953c9abe3d3f8cc5a0e135e2a0.png)
_______________________ (结果用
,
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c748c4c6d9c1e5c16a8ed47f0792f5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae92f0c583cc9daf980a8621ad96aef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da748953c9abe3d3f8cc5a0e135e2a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
6 . 如图,在
中,
为线段
上的一点,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ed6bee57f4526320197d6a7474386f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d093706141016f4e2fde905738cd481e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25066179e272d7a37bfb86f34b441caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
![](https://img.xkw.com/dksih/QBM/2018/4/30/1935073531002880/1936465989017600/STEM/336b5779-8877-4e8f-a36c-b50d89b37216.png?resizew=205)
您最近一年使用:0次
7 . 在平行四边形ABCD中,
,
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e4d2bcf4cdaab2a07ddf3640bb7ffa.png)
_______ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6898d181faf9e6cc9957f3102f8d3d73.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bfa9415b1c3c5b225f93e5c064f8091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9e6b43dd3c986fa138747052927dbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6f105e4f0567ebbea6b266eff68013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5a25fbd90c86c2297a6694b6460c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7da83854fc48217f25a473985fb75b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e4d2bcf4cdaab2a07ddf3640bb7ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6898d181faf9e6cc9957f3102f8d3d73.png)
您最近一年使用:0次
2018-04-28更新
|
833次组卷
|
3卷引用:【全国市级联考】浙江省杭州地区2017学年高一 第二学期期中六校联考数学试题