名校
解题方法
1 . 在正三棱柱
中,
,点
满足
,其中
,
.
(1)当
时,三棱锥
的体积为______ .
(2)当
时,存在点
,使得
平面
,则
的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c03c651cf3b88c30981b2ed27d27043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753dc1c83d54044b89e628a7eb247f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aab98011d732d4094e4e881b0bd2bd6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76819195cffab10d81638dd673f3af98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e16f65c3a318220c2f5baac171bbb61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4704cbf3d2de2f06a6ee29b3c252109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960966ead5bcb7fa70a3b941e018e45b.png)
您最近一年使用:0次
名校
解题方法
2 . 在平面直角坐标系中,四边形ABCD是平行四边形,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2714c95b28ade4d8b52885c5a893b59.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2d0cedd559c80b64815a207bb93cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b20184e3d3585a734928542e18509fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2714c95b28ade4d8b52885c5a893b59.png)
您最近一年使用:0次
2020-03-28更新
|
195次组卷
|
4卷引用:2019届江苏省无锡市第一中学高三下学期2月月考数学试题
3 . 平行四边形
中,已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2abc852338af84ee759178db24bd51.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2badf898821599520de63ea33c8bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd12c54a4bc6470cd9456cef72d5b8a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2abc852338af84ee759178db24bd51.png)
您最近一年使用:0次
解题方法
4 . 如图,在
中,
,
,
,E为
的中点,
与
交于点F,G为
的中点.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfab72149ec6081c0295306d3d956a35.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd3ae3ea9d8354844aded187f4726543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfab72149ec6081c0295306d3d956a35.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/7800c598-38c4-4470-899b-0591063f4d18.png?resizew=212)
您最近一年使用:0次
名校
5 . 如图,在梯形ABCD中,
,P为线段CD上一点,且
,E为BC的中点,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b4e139e76885aad13c1d5b945de4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e177a0a827a9a628805a0ddcc5a49af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912b81343bee0627f1b5e5f6412ebead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
![](https://img.xkw.com/dksih/QBM/2018/3/2/1893508533051392/1896978955083776/STEM/4c00a4adbfe640689d460a13c4396462.png?resizew=150)
您最近一年使用:0次
2018-03-07更新
|
316次组卷
|
5卷引用:【全国百强校】江苏省海安高级中学2018-2019学年高一上学期第一次月考数学试题(创新班)
12-13高三·天津·阶段练习
名校
6 . 设
、
为
的两点,且满足
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c36ab85f2cbfa4fa27df0a56310e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fa39b8b74d8eed134e238347b5b6a5.png)
+
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6863c903464cb64819c410e6fe6242.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d036188ce294e3c7427d0b7d2294fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c36ab85f2cbfa4fa27df0a56310e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fa39b8b74d8eed134e238347b5b6a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d036188ce294e3c7427d0b7d2294fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fe3fd625659f6e4c56a35f49fa64c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6863c903464cb64819c410e6fe6242.png)
您最近一年使用:0次
2016-12-02更新
|
572次组卷
|
4卷引用:江苏省镇江中学2019-2020学年高一下学期4月阶段检测数学试题
江苏省镇江中学2019-2020学年高一下学期4月阶段检测数学试题(已下线)2013届天津市天津一中高三第四次月考文科数学试卷(已下线)2014届高考数学(文)三轮专题体系通关训练倒数第6天练习卷【全国市级联考】广东省深圳市2018届高三高考模拟测试9数学试题
12-13高三上·江苏盐城·阶段练习
7 . 在△OAB中,已知P为线段AB上的一点,若
,
,
,且
与
的夹角为60°,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa534f31f5d56d3f0b4cc3a29c1d630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811e40a3bb22a4ac38e4ff8c78077cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612ced101f95eb7c9ea960cbff045dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eeb629a6f94d187154b9e0fba4eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ba7499bd7ef12d4be6a78d868d4800.png)
您最近一年使用:0次
8 . 在
中,
,
,D为AB边上的中点,则
等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddf629bfb2d7b9daea6f2c1553360af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69550d878381f6e8fb436e88638f070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68d5fab76be5d73f357190f9d37f94a.png)
您最近一年使用:0次