23-24高一下·上海·期末
解题方法
1 .
三内角
,
,
所对边的长分别为
,
,
,设向量
,
,若
,则角
的大小为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090904da70d76c97b787bc44948f215d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6107483a497c9ee9e2d4ac298ec0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb83fac351156d4447cdca7cbd07c194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
解题方法
2 . 在平面直角坐标系中,
、
,设点
、
、
、…、
是线段
的
等分点,其中
为正整数且
.
时,试用
、
表示
、
;
(2)当
时,求
的值;
(3)当
时,求
(
,
,
,
)的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6ff81aedbefa935da289dc632e78eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b54b9cf95418bc3dce6e4c698b9907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb90a2118db1e9945d7b5997bf2482a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cb7ee166966ed0b1605c263e433cf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc77d6da6e8f3ad5c239e7cc6c9930c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2521506a29dfa82b76370f6621b5e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60f5e90b85f837727d1148b18b9a0db.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec5d76db9bd05547932966c9913dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942abd572bb4faca805648518d9398d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9612cb52aacd0b66fc1ba1297267c9c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fffa76fee075ec824d689b610c11bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e83e574b885df4d9740540f02e52c13.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,在平面直角坐标系
中,点
,点
在单位圆上,
.
的值;
(2)若四边形
是平行四边形,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6ff81aedbefa935da289dc632e78eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf66ddd7e0869ffdce7f9c45972d193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa35755a33879e1d9e4fc93c28a4ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c4d975ad05fc4f258046a006c850a2.png)
(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b76ac232477ac6d4b0a36eded969d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
名校
4 . 已知向量
,则下列能使
(
,
)成立的一组向量
,
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc1805ec3700c2838b450733bbde84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ee56fcc74ee0d3a94207a39a1c42d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d38dc104899f83d74196facbdea76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f2b1408644b6ab804d0e0205297f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a13680f71c5f27aeff1e2f8e60739a.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知向量
,若
与
的夹角为锐角,其中
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63246c94f472fc0250ebc2a55efb967d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d804313d1359beaed1783c881ac0d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b8e5990ef4ef314941a3154457a9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
6 . 已知a,
,
是虚数单位,
,
在复平面上对应的点分别A、B.
(1)若
是实数,求
的最小值;
(2)设O为坐标原点,记
,若
,且点C在y轴上,求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f05683157eb845db949d888899d0f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c484d60171548d3b143f4d664b1c9c1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf36d6c7ecd9fb710f8b7237c488471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d401876b078e318413b8ad876c54b7be.png)
(2)设O为坐标原点,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc170fc6c893de77fdbb1d5a9b34814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4876efa91f38d11ce12fed2e1fbf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
您最近一年使用:0次
名校
解题方法
7 . 如图,在平面斜坐标系
中,
,平面上任意一点
关于斜坐标系的斜坐标这样定义:若
(其中
分别是
轴,
轴正方向的单位向量),则
点的斜坐标为
,且向量
的斜坐标为
.给出以下结论,其中所有正确的结论的序号是_______
,
,则
;
②若
,则
;
③若
,则
;
④若
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad4c21d0009cf8265361890308e056e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72bf0fce80daad394f2a9d013829c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879080beb1e55cae2639645cd64c4710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be815024e215a7804f07bfb7b902ee92.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455bae796d928c3c4d9090e924259628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492ec33a8a8fe343c808dad4d4048a27.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d97636c187bac63f85bbe7b4f037c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b857b2449bceb2517aa97388f4d3b585.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3db266679b2b3fde243f74746e0e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143350baca29128763c3df934dc75608.png)
您最近一年使用:0次
名校
解题方法
8 . 已知平面上
两点的坐标分别是
为直线
上一点,且
,则点
的坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caadc50674dec0c128a54bd1989015ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69c56cdab3ad69ea7cde513ecdbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
解题方法
9 . 已知点
,
,若点
满足
,则点
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e95fb519f59c46f40e4ab44660073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444c5d393b85df77fc5c8ca43374cc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4079b9c1702107192ed48da27fd117a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-05-27更新
|
351次组卷
|
2卷引用:上海市进才中学2023-2024学年高一下学期期中数学试题
名校
解题方法
10 . 在平行四边形
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc40222cc1ba0d2ddd3e67d9d6aac778.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65182caa0f3738c2f379bd2351fd6f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc40222cc1ba0d2ddd3e67d9d6aac778.png)
您最近一年使用:0次