1 . 已知向量
,向量
是与向量
夹角为
的单位向量.
(1)求向量
;
(2)若向量
与向量
共线,且
与
的夹角为钝角,求实数x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d67bda3986d22b6cb82070864b4fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50e897700e0b9e8e31e677b4d241dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e45f0fae461881d999e14a3de613e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bf9e42f4ba6772a859da00df960714.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50e897700e0b9e8e31e677b4d241dc1.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50e897700e0b9e8e31e677b4d241dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4beab0ea942209772744e0438d391d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50e897700e0b9e8e31e677b4d241dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ce3015cea94778d0c740d3593e5d4e.png)
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2 . 如图,在正三棱柱
中,
,点
,
分别为
,
中点,求:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/c2045a5b-13d1-464c-b797-2ab60176bd54.png?resizew=124)
(1)异面直线
与
所成角大小;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.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/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/c2045a5b-13d1-464c-b797-2ab60176bd54.png?resizew=124)
(1)异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbc96c20ebba91031a1c54037fe651c.png)
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3 . 已知两点M(-1,0),N(1,0),且点P(x,y)使
,
,
成公差小于零的等差数列.
(1)求x与y满足的关系式,并写出x的取值范围;
(2)记
为
,
的夹角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6eb7c8a01467044f11abe5fc7081995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f4ea7498731e5af223a75a5ab7f32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee62ddc19a7f5eb488936c4d6c83978.png)
(1)求x与y满足的关系式,并写出x的取值范围;
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5ad849321c004834b89b6d26594e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc37a21e51692ea9acb99ff0a25ae280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
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名校
解题方法
4 . 在长方形
中,
,
.M,N分别是线段
,
的中点,P是长方形
(含边界)内一点.
(1)求
的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4ae4881d290a010988db3eec009ab4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442e34f9ebda5c3ac4a106d9ad371e6b.png)
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名校
5 . 在一个平面内,一质点
受三个力
、
、
的作用保持平衡(即
、
、
的和为零向量),其中
与
的夹角为
,
与
的夹角为
.
![](https://img.xkw.com/dksih/QBM/2019/10/23/2317988587274240/2318182808379392/STEM/36e1c720b887490193ee94dca77427a8.png?resizew=245)
(1)若
,
,
,求力
、
的大小;
(2)若
,求
与
.(用反三角函数表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0985912f741bd0934b10c52452fc9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c48b15e8d588d0ac4b5f8e23c768f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d4b28d9326c4adfe9e4c783dba6be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0985912f741bd0934b10c52452fc9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c48b15e8d588d0ac4b5f8e23c768f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d4b28d9326c4adfe9e4c783dba6be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d4b28d9326c4adfe9e4c783dba6be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c48b15e8d588d0ac4b5f8e23c768f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d4b28d9326c4adfe9e4c783dba6be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0985912f741bd0934b10c52452fc9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/2019/10/23/2317988587274240/2318182808379392/STEM/36e1c720b887490193ee94dca77427a8.png?resizew=245)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0174ecb3effe04d6137463dcad183c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babb6061825778a790b2fde1d4267abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169f306435e6b77fd17d906807f0ba39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0985912f741bd0934b10c52452fc9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c48b15e8d588d0ac4b5f8e23c768f4a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302bb56306d04e9d06667c1a8920455a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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6 . 已知O为坐标原点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c2b0f51c8029ee90245937a8a96989.png)
(1)若
为锐角,求实数
的取值范围;
(2)若
是以
为直角的直角三角形,求实数
的值并求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c2b0f51c8029ee90245937a8a96989.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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名校
7 . 已知:
是同一平面内的三个向量,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f242f038195884ef098a99a274a1a7.png)
(1)若
,且
,求
的坐标;
(2)若
,且
与
垂直,求
与
的夹角
.
(3)若
,且
与
的夹角为锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbea69783ef033bf837c403cf36ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f242f038195884ef098a99a274a1a7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5b8eb2cdf5bbb1ac234e59ea80cd1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ee3a0e0f06c77f9c6980d15073c693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d9d4998cf104d7e28f10888deb66c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b37b1b1c2803e723337c20b554c5cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666dd921a9619a13967d04b5710bf93b.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/c24095e409b025db711f14be783a406c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b766e1414ad7445839c7ac2b9becc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7447872b1ead17d89c0947b601cd87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2019-12-04更新
|
1062次组卷
|
4卷引用:上海市泥城中学2018-2019学年高二上学期第一次月考数学试题
上海市泥城中学2018-2019学年高二上学期第一次月考数学试题上海市上海交通大学附属中学2015-2016学年高二上学期期末数学试题甘肃省武威第六中学2019-2020学年高一下学期第一次学段考试(期中)数学试题(已下线)第九章 平面向量(综合测试卷)-2021-2022学年高一数学10分钟课前预习练(苏教版2019必修第二册)
8 . 设两个向量
满足
与
的夹角为
,若向量
与向量
的夹角为锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42503437fb44722722cd20835f11d233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaf48e9309a3dc7696eb686cdf32279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf39ca3294f5520518dd4f1c0609876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0ef0910f487aa62d02508013eb963d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc88fd9769cede694f993e9c69df624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
9 . 已知
是等腰直角三角形,
,
是
边的中点,
,垂足为
,延长
交
于点
,连接
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96d9e134e1820d80612be1bc590993e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c897a54f2e36bc4b52fba74b41c89d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fa845ebcac7fbdaf52df082445799.png)
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2019-10-09更新
|
490次组卷
|
7卷引用:高中数学人教A版必修4 第二章 平面向量 2.5.1 平面几何中的向量方法(2)
高中数学人教A版必修4 第二章 平面向量 2.5.1 平面几何中的向量方法(2)人教A版 必杀技 第二章 平面向量 第二章全章训练人教A版 全能练习 必修4 第二章 第五节 2.5.1 平面几何中的向量方法(已下线)6.4.1 平面向量在几何和物理中的运用(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)广东省连平县忠信中学2020-2021学年高一下学期段考(一)数学试题(已下线)专题6.9 平面向量的应用(重难点题型精讲)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)专题6.5 平面向量的应用-举一反三系列
10 . 在平面直角坐标系中,已知
的顶点
,
,
.
(1)求
边上的高;
(2)设点
是
平分线所在直线上的一点,若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6765a87bcc2b6d44aabdee9af73e6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e951d6d2369e8da79a793a93a66a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc27522334072c7f41cc482c1c67e9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bc29145f6e7557711c34b443bd5e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88be9946bb3c259c38fb75ff24842eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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