解题方法
1 . 平面内给定三个向量:
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1085c00a732d270feeedc069220c0f2d.png)
(1)求
;
(2)若
, 求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d467b639de326e28c8bb3b42728e2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67584e2063b8190b096eda30501e596b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1085c00a732d270feeedc069220c0f2d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e1e693db4413c3db29d4386995a36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa1675751e58aad5b939151818ae3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知向量
.
(1)若
为直角三角形,且
为直角,求实数
的值.
(2)若点
能构成三角形,求实数
应满足的条件 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26204e505b1dff07e4a9a00b0d876ed.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2016-12-04更新
|
207次组卷
|
3卷引用:2015-2016学年辽宁省庄河市高中高一下期中理科数学试卷
解题方法
3 . 已知向量
.
(1)
在
上的投影;
(2)若
与
共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce1178baf3149968d8b8ac8c1d858e9.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb8ae95df6c9b377b8a2c6de5f4d96a8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c648c7aa26ca519148d697617f746e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
4 . 已知向量
,
.
(1)若四边形ABCD是平行四边形,求
的值;
(2)若
为等腰直角三角形,且
为直角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270d54f1f02edfd90a860ec9fbd6780e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af416f9665246aab79208900e0065756.png)
(1)若四边形ABCD是平行四边形,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19798b6271b2713fbdb1ba959a5ddd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
您最近一年使用:0次
2016-12-04更新
|
680次组卷
|
3卷引用:2015-2016学年重庆十一中高一下期中理科数学试卷
2015-2016学年重庆十一中高一下期中理科数学试卷重庆市大学城第一中学校2018-2019学年高一下学期期中数学试题(已下线)6.3.2 平面向量数量积的坐标表示(精练)-2020-2021学年高一数学一隅三反系列(人教A版2019必修第二册)
解题方法
5 . 已知平面上三个向量
,
,
,其中
.
(1)若
且
,求
的坐标;
(2)若
,且
,求
与
的夹角
的余弦值.
![](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/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e4d15ab8f5359f6aa3b42674b0c13.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa87adc57d7f57e46061807e3d2a3490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01befa7f7561b4f33725fd714dbca42c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23a707f9d1f86d091b320f0346d20c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f93658bed3af10d6a393c651e90ae63.png)
![](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)
您最近一年使用:0次
2016-12-04更新
|
936次组卷
|
2卷引用:2015-2016学年重庆市巴蜀中学高一3月月考理科数学试卷
6 . 已知向量
,
.
(Ⅰ)求
与
的夹角的余弦值;
(Ⅱ)若向量
与
平行,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2b7152cf055c4b674bf55c4f24ce9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884b2b58b7a48360dbb121169f273b1f.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
(Ⅱ)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cae1180d7aa8a3265a9ae557958130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8827d05338e55f9b60f882d66492ff70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
7 . 已知向量
.
(1)求
与
的夹角的余弦值;
(2)若向量
与
平行,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e99d7b2f80debfd44a00fdde0b1a65e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cae1180d7aa8a3265a9ae557958130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8827d05338e55f9b60f882d66492ff70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
8 . 已知向量
,
与
共线.
(1)求
的值;
(2)求函数
在区间上
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab624467f8338d31ae98524e082e867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3c91dcb0adec6f1697a0e89a90d2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba3087bdb84efa9465d655720b730c.png)
您最近一年使用:0次
解题方法
9 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fbd643892ed1d6dad5bb6260c6f914.png)
(1)求
的坐标;
(2)当
为何实数时,
与
平行时它们是同向还是反向?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fbd643892ed1d6dad5bb6260c6f914.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594ffcc1c3cc0bc59d021c23f853201a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b402631a92813c4e96a538133a3d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594ffcc1c3cc0bc59d021c23f853201a.png)
您最近一年使用:0次
解题方法
10 . 已知向量
互相平行,其中
.
(1)求
和
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658fb5c688b90a67247280c3135e2a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211ead7b4685ef34e3dc991e533d11c0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507f31dfa44e30ad00ce1aca46bd59f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abfb55e8443ecf97535f8e189a76c60.png)
您最近一年使用:0次