名校
1 . 已知
,
,则
的最大值为______ ;若
,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761f1e011a099f49d4095030cf2ce36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5587e25d6580365d5a04b88f7c942d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2 . 已知向量
(1,3),
(﹣1,t),t∈R.若向量
与
共线,则t=_____ ;若
⊥
,则t=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3c0d82cbb443d84763b9b1d3f88f20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c5684ccff633c427608fb5599ba1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2859333183a1d5749eac25f8b4e3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efda714bc270ccf8712aaf16f7b08b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2859333183a1d5749eac25f8b4e3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efda714bc270ccf8712aaf16f7b08b82.png)
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解题方法
3 . (1)已知向量
不共线,则使得
与
共线的实数k的值为_____ .
(2)如图,在
中,点O是
的中点,过点O的直线分别交直线
于不同的两点
,若
,
,则
的值为______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/0dd5d9de-9714-4e42-a04d-0f747a1b9820.png?resizew=113)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea1f268299d57e5362182760a5961af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6e8b69cf804910762e26535caf477e.png)
(2)如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba123703956b30a1bcd59dd9191ba53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c549b6053a84c2d6ed60115c411fcc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/24/0dd5d9de-9714-4e42-a04d-0f747a1b9820.png?resizew=113)
您最近一年使用:0次
4 . 如图,设点P,Q是线段
的三等分点,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5674240a2e062c330b12cd59fb3edc6d.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edbc89a38478ad5ecf78f1a31a63df5.png)
_______ (用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6942bd9fc5d090de0cfad7022aa32f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cc63e33fe47da2704cff57d148dde0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5674240a2e062c330b12cd59fb3edc6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edbc89a38478ad5ecf78f1a31a63df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/d9aa477f-e910-4ee3-b5fe-ed97993220e8.png?resizew=157)
您最近一年使用:0次
2020-02-02更新
|
705次组卷
|
5卷引用:人教B版(2019) 必修第二册 逆袭之路 第六章 6.2 向量基本定理与向量的坐标 6.2.1 向量基本定理
人教B版(2019) 必修第二册 逆袭之路 第六章 6.2 向量基本定理与向量的坐标 6.2.1 向量基本定理人教A版(2019) 必修第二册 逆袭之路 第六章 6.3.1 平面向量基本定理(已下线)专题6.1 平面向量的概念及其线性运算(精练)-2021年新高考数学一轮复习学与练甘肃省甘南州卓尼县柳林中学2018-2019学年高一下学期期末数学试题(已下线)专题6.1 平面向量及其线性运算(A卷基础篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)
5 . 如图,在
中,
,
,
,
,过点
的直线分别交射线
、
于不同的两点
、
,若
,
,则当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd43149caaa3e17641ff716ce7960f7.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458b9f05780b69539b1f794c78318d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f58e9b25af8da963ccba6c6a3212fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c82582bfa291e8886181d1549d15c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d318d706ca4ec954246a292293b91a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd43149caaa3e17641ff716ce7960f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/594c234a-5188-4b04-ba3b-236c2c992504.png?resizew=156)
您最近一年使用:0次
2020-01-14更新
|
573次组卷
|
3卷引用:天津市和平区2019-2020学年高三上学期期末数学试题
6 . 已知
是单位向量,
,
,
,
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
____________ ;若
三点共线,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32119425290f7817d3070b0cece5e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785ec8bbf8532c7804ef7ec7cc259b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d916cea4e99767d8228f53b6dfac036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb031e112c0e26dec2289f7c5228385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99cf21750c1ca5f68927bb6e9139e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d148a7cb4963f092385d5e030ff37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6467319e1a39b4f7f8348a459d87c477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
7 . 已知
,
.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
_______ ;(2)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93336f19244722b69af75578062d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122f6e49ce5d189a51613d6e5c08f9a8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a683d9cd5f84e07bc351819d9dd96df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,
,若
,则实数
的值是_____ ;若
与
的夹角为锐角,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8422176d6f6f3596df30f8d187b94477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ab5f93cd89ae2800ce9be4010c1942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a683d9cd5f84e07bc351819d9dd96df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次