2024高三·全国·专题练习
解题方法
1 . M,N分别为
的边AB,AC上的点,且满足
,
,若
,且
,则MN恒过
的______ (填“五心”中的一个)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2d9c45e9701f4f0f514fdcaad5b591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22f740f752035b033b2d2e5c85d6e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2531a23d8c5bc2c51dc55abd3e4799d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee843b8908f021e14f112b87e4e48d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024高二·全国·专题练习
解题方法
2 . 如图,平面四边形
中,
与
交于点
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b596e35b42cd63d83a861dd9f586b8.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a503772d15eea69d1c8739c6b1c3fc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2f554699faf6ebf48d65bcfb5dc15d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b596e35b42cd63d83a861dd9f586b8.png)
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名校
解题方法
3 . 在正方体
中,
分别在棱
上,
,平面
与棱
交于点
,则直线
与
所成角的余弦值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ed890ce507890d92fb553c679bf893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfc15063d3701e38260532e3bbcad89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2024高一下·全国·专题练习
解题方法
4 . 如图所示,在
中,
,P是
上的一点,若
,则实数m的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d2e12d456e20f96c87e0587404ff4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838c20d6a27bf756634020e0bd4de3bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/8a70d659-4e4e-42ce-b8f5-43fd764460f7.png?resizew=112)
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名校
解题方法
5 . 已知平面向量
,若
与
共线,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c246989bb4bfbc1c4f4527232ba56d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beeed95214a060aa5a4321aaa1c036d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2024-02-13更新
|
1774次组卷
|
7卷引用:陕西省西安市西咸新区2024届高三上学期模拟考试数学(文)试题
2024高三·全国·专题练习
名校
解题方法
6 . 在中,
是边
的中点,
,过点
的直线
交直线
分别于
两点,且
,则
您最近一年使用:0次
名校
解题方法
7 . 已知向量
,
为单位向量,且
,向量
与
共线,则
的最小值为__________ .
![](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/d6607738f937c4226021bb3dc4e96159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31b07a2081bfaaf77c0062193ab173e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32024fbbcd5313513029e62ee90c04ff.png)
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2024-01-29更新
|
3165次组卷
|
4卷引用:吉林省长春市五校2023-2024学年高三上学期联合模拟考试数学试题
吉林省长春市五校2023-2024学年高三上学期联合模拟考试数学试题重庆市渝北中学校2023-2024学年高三下学期2月月考数学试题(已下线)第三套 新高考新结构全真模拟3(艺体生)(已下线)第15题 向量小题归类(高三二轮每日一题)
名校
解题方法
8 . 向量
,
,
在正方形网格(每个小正方形的边长为1)中的位置如图所示,若向量
与
共线,则
与
夹角的余弦值为______
![](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/bbdd25b2666192dda5bf79071e612884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25df946fad462e6f998d2fadfc026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/2c9012ac-ca20-4c6b-b120-2e10d412a133.png?resizew=136)
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2024-01-24更新
|
506次组卷
|
2卷引用:湖南省长沙市第一中学2024届高三上学期月考数学试卷(五)
9 . 在
中,点
是边
上的动点(点
异于
,
),且
,若
,则
的最小值为________ .
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0772aa1bd117cacc2eb959d39da92151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3693012b4cfd7643797513ccc85f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09119d7ad4bb276c3895b567ce284ff6.png)
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解题方法
10 . 已知
,
为一组不共线的向量,且向量
,
,能使得
的一组实数
的值可以为![](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/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3988b6ee27f208f8c426dcac3c4e795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6068af75c62202637d47162f88117259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af920bfee3c455c4aa7e53a3aec5c6fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
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