已知向量
为向量
的夹角.
(1)求
的值;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb682ea6d7f9b6dfcdb884de44fdef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106f3fb25c685d48776fa7eb23bad497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
23-24高三上·甘肃平凉·阶段练习 查看更多[4]
甘肃省平凉市静宁县文萃中学,静宁县第一中学等学校2024届高三上学期11月月考数学试题6.3.5平面向量数量积的坐标表示练习(已下线)专题04 向量的数量积-【寒假自学课】(苏教版2019)江苏省无锡市辅仁高级中学2023-2024学年高一下学期3月月考数学试卷
更新时间:2023-11-07 20:34:21
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【推荐1】已知半圆圆心为
点,直径
,
为半圆弧上靠近点
的三等分点,若
为半径
上的动点,以
点为坐标原点建立平面直角坐标系,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/179f0f9a-4516-4afe-a55f-d46580c91ae0.png?resizew=189)
(1)求点
、
、
的坐标;
(2)若
,求
与
夹角的大小;
(3)试求点
的坐标,使
取得最小值,并求此最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/179f0f9a-4516-4afe-a55f-d46580c91ae0.png?resizew=189)
(1)求点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876abd1dec09580c08d8f7e1c85dffcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d956b09c004ddf8bdf6669a8182e80ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a1b3d5f4068fbcba6e4b47971d51a8.png)
(3)试求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f125783c4f9d422f8ac6caebac164f6a.png)
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【推荐2】已知向量
,
满足
,
,
.
(1)求
与
的夹角的余弦值;
(2)求
.
![](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/d589af3739b9fca5229e0607bb5f6e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407538138dd68ab917925c2063cc98e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596fe31947a96c8d986012ff0dd64ef1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d50f797c8e7e36192a66848357d3d2c.png)
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【推荐3】已知向量
,
满足
,且
,
.
(1)求
与
的夹角
;
(2)求
.
![](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/f57a292250a15bb9521d9cbee9bd6189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
(1)求
![](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/c24095e409b025db711f14be783a406c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b195aa36a3c2753ebf08cb464c52ad1e.png)
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【推荐1】已知平面向量
,
,
,且
,
(1)若
,且
,求向量
的坐标;
(2)若
,求
在
方向的投影向量(用坐标表示).
![](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/776e1069609f982ceb0ee978d296d047.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1c5bcaa260128e281a12f6ef6aacbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88db51443722e86f675e7092896056d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557e8bf7ccce8465481e117a77252320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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【推荐2】已知向量
,
且函数
.
(1)求函数
在
时的值域;
(2)设
是第一象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67385dc35cccd994f218d971041a16e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e26104d6afc0236dc321f334325819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a34b4bf4bba566959635a7982cec6ae.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd85cdc96850257a97bb6f3df896ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e839682f21e7a077366762e09cccd2c3.png)
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【推荐1】如图,已知等腰梯形ABCD,AB=DC=4,BC=10,AD=6,
,
,点F在线段BC上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/4d73f5fb-b076-45b6-b70a-6c04ec3cc875.png?resizew=181)
(1)判断满足上述条件的点F的位置;
(2)求点D到线段EF的距离(直接写结果).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ba320088e37f65084b65e42ec3caf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8aed88ad640f3d76735f1e5dbc04b23.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/4d73f5fb-b076-45b6-b70a-6c04ec3cc875.png?resizew=181)
(1)判断满足上述条件的点F的位置;
(2)求点D到线段EF的距离(直接写结果).
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【推荐2】已知向量
,
,
.
(1)求
的最大值;
(2)若
,且向量
与向量
垂直,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e3b305d46c3e71fead9f4988cf2a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b44a9cd3169b43019c3786c2023203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82286a5133c56e2b4ef63b25057abe2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb750fee938187cdc23aa74729233ef.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4120436d6ff0c58109473edc068257c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a481182d94897ef858748041cbf8cef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
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【推荐3】在平面直角坐标系
中,已知点
,
,
.
(1)求以线段
,
为邻边的平行四边形的两条对角线的长;
(2)若向量
与向量
垂直,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d8638349bba38af6d6d53a55634626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656de1832d5046c5c0d242372ff48c08.png)
(1)求以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ffbbcee9e67b6604841bd84be38e6b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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