1 . 已知平面内三点A,B,C满足|
|=|
|=1,|
|=
,则
•
为
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/3cc7975b3d4e44738992a09efdbd898e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/ef3ff08017f64b7385437655d01c1b0c.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/461e72de47de46d2bbcc7af999d10d3e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/2178ee82f4cc4390bf7215a9d6753c53.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/3cc7975b3d4e44738992a09efdbd898e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546403147776/1572546408701952/STEM/461e72de47de46d2bbcc7af999d10d3e.png)
A.![]() | B.﹣![]() | C.![]() | D.﹣![]() |
您最近一年使用:0次
2 . 已知
,且
,则![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/cc086b1b414044e1a174340b07c02ae4.png?resizew=51)
_____ ,![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/101f25dd9049443cb3321d07904e4d59.png?resizew=41)
_____ ,![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/0132305e1ff840c7b445d1b125cbec03.png?resizew=43)
_____ .
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/08402bbb656847cea23db9d8b08b0dcd.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/c2e7ef17a8634079aa14cca904bbfd63.png?resizew=92)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/cc086b1b414044e1a174340b07c02ae4.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/101f25dd9049443cb3321d07904e4d59.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195014656/STEM/0132305e1ff840c7b445d1b125cbec03.png?resizew=43)
您最近一年使用:0次
3 . 已知向量
的夹角为
,
,向量
,
的夹角为
,
,则
与
的夹角正弦值为_____ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498e31243c96cee074159c14530ce929.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc719587959a285d9779eb1d165977b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015804533449e04f3e4f9f2d54326f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222fd0837d18068c2471dac135e79f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676c85d0a447f38f8163c514a0c348e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222fd0837d18068c2471dac135e79f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498e31243c96cee074159c14530ce929.png)
您最近一年使用:0次
2016-12-04更新
|
304次组卷
|
2卷引用:2016届浙江省湖州中学高三上学期期中理科数学试卷
4 . 已知直线
与圆
交于
两点,
为坐标原点,则
等于_______ ,
等于_______ .
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195072000/STEM/a5690fde63a5432599e2b0ad1f1db66b.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195072000/STEM/f4ebb533a5134af687c085427d9c3f8c.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195072000/STEM/eb40c4dadc6840b98bee0b3b791f4fe5.png?resizew=40)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195072000/STEM/8f62d4b8c42543d18d1b025d5deb4b1a.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536189100032/1572536195072000/STEM/7b4511ab32fb4880a6b8374c6df3e139.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297bc912cb09546db07e4fb6be67af40.png)
您最近一年使用:0次
2016-12-04更新
|
307次组卷
|
2卷引用:2016届浙江省湖州中学高三上学期期中理科数学试卷
5 . 已知
,且
,则![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/3176af00d2894b508f9a0905bed2fd8a.png?resizew=51)
______ ,![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/a59326f2a2e24734b0f981d41b3ee951.png?resizew=41)
______ , ![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/97bcf747a18d4db584665e4247e0f39c.png?resizew=43)
_______ .
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/467f8a13cffb447cbe11f9cc127fe777.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/6f34c914c5ff4789958bdc256e196dd5.png?resizew=92)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/3176af00d2894b508f9a0905bed2fd8a.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/a59326f2a2e24734b0f981d41b3ee951.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572535899914240/1572535905583104/STEM/97bcf747a18d4db584665e4247e0f39c.png?resizew=43)
您最近一年使用:0次
解题方法
6 . 已知正方形
的面积为
,点
在边
上,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c94748d16a95f79bf02aa4c4afcb587.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
744次组卷
|
3卷引用:2016届浙江省温州市高三一模文科数学试卷
7 . 已知
,且
.
(Ⅰ)求
的值;
(Ⅱ)求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2e4f3dcd39086dedb14208d6b6650f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75c647770bb61cc5972ea01474de1c8.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
(Ⅱ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3240eadb36759c2566c1eb8b7c97c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5599dce99765810b77145af8b39f93.png)
您最近一年使用:0次
2016-12-04更新
|
728次组卷
|
5卷引用:2016届浙江省温州市高三一模理科数学试卷
名校
8 . 已知
中,
,
,点
为线段
上的动点,动点
满足
,则
的最小值等于_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7652bbae10722db2cf0458d9da4a54c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0b87a2a595f8b1d14e09a865ca489a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0164b36cebbbcf58e9c04c45b45af60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0e27ba6ce5a537ba70bb80b5bb2775.png)
您最近一年使用:0次
2016-12-04更新
|
1220次组卷
|
6卷引用:2016届浙江省温州市高三一模理科数学试卷
2016届浙江省温州市高三一模理科数学试卷浙江省杭州市第二中学(东河校区)2018-2019学年高一上学期期末数学试题上海市建平中学2021届高三三模数学试题上海市大同中学2021届高三三模数学试题(已下线)课时27 平面向量的分解定理及应用-2022年高考数学一轮复习小题多维练(上海专用)上海市行知中学2022届高三下学期期中数学试题
9 . 已知函数
,且给定条件
:“
”.
(1)求
的最大值及最小值
(2)若又给条件
:“
”且
是
的充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc36486a3c93fc8f1a46b19a4385ce96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee33bfbf6fa1718bda27d4e537d3a94.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若又给条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86384fa92128289059349a8ccfa831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 设
,
为单位向量,且
,
的夹角为
,若
=
+3
,
=2
,则
•
=
,向量
在
方向上的射影为____ .
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/49cef49f0d144d2c9bea6de99c74d0f8.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/dd87794ba3da49ec8934aa1bfa5c282f.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/49cef49f0d144d2c9bea6de99c74d0f8.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/dd87794ba3da49ec8934aa1bfa5c282f.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/3853e016da5f4ced95cf2f27e5e17990.png?resizew=18)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/d4f5828e2cdd41f1854872f0c7a55bc2.png?resizew=10)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/49cef49f0d144d2c9bea6de99c74d0f8.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/dd87794ba3da49ec8934aa1bfa5c282f.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/4c601a6e12024d40a95fcdf97cf01fd3.png?resizew=10)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/d39a5382c3764174a483aa8789dbdea6.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/d39a5382c3764174a483aa8789dbdea6.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/44a266aed7d243ef802993c5a1fb1408.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/08942d6e30c14664b691255ee0111551.png?resizew=10)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/77b3fb1ac39a4caf8d71de56f4495c5e.png?resizew=10)
![](https://img.xkw.com/dksih/QBM/2016/2/23/1572491963760640/1572491969536000/STEM/4c601a6e12024d40a95fcdf97cf01fd3.png?resizew=10)
您最近一年使用:0次