名校
解题方法
1 . 定义两个向量组
,
的运算
,设
,
,
为单位向量,向量组
,
分别为
,
,
的一个排列,则
的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858abf937bceeabf58fa26f5e2ffa418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbea56fd5adb7789d6aa1de90b65286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277a03c880a98dd28733c3ce21487b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccfda9afde4441cfd1d4df5fe9622d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858abf937bceeabf58fa26f5e2ffa418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbea56fd5adb7789d6aa1de90b65286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccfda9afde4441cfd1d4df5fe9622d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc9443a8230fb9f3726fc7cb6b3521.png)
您最近一年使用:0次
解题方法
2 . 对任意两个非零向量
,定义新运算:
.
(1)若向量
,求
的值;
(2)若非零向量
满足
,且
,求
的取值范围;
(3)已知非零向量
满足
,向量
的夹角
,且
和
都是集合
中的元素,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662917aedec92809a13618093c8e0c3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8fcfe76ebcc117a04aff784c708cf8.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f35da65fbee7dc112ad98c897a21e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bb7c28c450198e14a6003c8429ea4a.png)
(2)若非零向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82a102684873f9dfde748535cdc6b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd48a034a37514095fd2b435640230a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd873a8e0052ca540c08b6cf84408822.png)
(3)已知非零向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9fd92a255799ab6b864600fabd5831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5141e1f11fe9486d1769d0a9b1f340fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bb7c28c450198e14a6003c8429ea4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd873a8e0052ca540c08b6cf84408822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8a50d960d91796ec129aa16c0fc550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bb7c28c450198e14a6003c8429ea4a.png)
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解题方法
3 .
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b047198608ca5d68846ee83fd1a0e9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 .
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee12085722c57f901d36be283bd0908.png)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
解题方法
5 . 在
中,有如下四个命题,其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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6 . 如图所示,以
为始边作角
与
,它们的终边分别与单位圆相交于点
,
,已知点
的横坐标为
.
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99981be1c406b30b49185304864d9700.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b5508dddaaea532f007b2ff5351a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247666b781d4289ea1af61e103418a03.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7488416c7730fc97cdf2999bfc509959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fe57d4fbae536de2e641d9d349fcf1.png)
您最近一年使用:0次
解题方法
7 . 如图在
中,
,
,设
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb95d089784702a0b6d459f18a4e1e72.png)
表示向量
.
(2)若
,
,
,求
.
(3)若
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a84ab6721f8f7f510b54ae9ba5ef81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4464d66a6064905e521a946843ceff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e923e4cdcbea6a029f5ba188a59229d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb95d089784702a0b6d459f18a4e1e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0531c57fe21c3c5ada307af8d49f3b0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c278812c4813f6391c7993574e2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b59ab6bf6111dda4a3d428454768b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2a8d0c77c54fdf9aa97978f8e5dc0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7ab10c3b9021757e9a89ab47807484.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b47a08a25693bbfa01026573625ad15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09a88dc7dc9cd668a57138e1ec71ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e811dee23eb88d9f05fbdc9fbabf77b.png)
您最近一年使用:0次
解题方法
8 . 已知函数
的一段图象如下图所示:
的解析式.
(2)将函数
的图象上所有点保持纵坐标不变,把图象上所有点的横坐标伸长到原来的4倍,再把图象上所有点向右平移
个单位,得到
的图象.则当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0ef9d537e1849ed448318247dce9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4deb7ec68a4e56ccfef8995de3ae3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
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名校
9 . 平面直角坐标系中
,设点
是线段
的
等分点,其中
.
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/ffa38cdc43cef94226e48086993107b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa963c9dbb012bb08c2fdf5e5e41034.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/961d168b375c0f368abb55723276d717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c12f9c428675ab178fc31e01f4334ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349eef3a3e97e2718ed5e77f313a4292.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ea0392d4bd0374c8a2b12a355e4655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed1a16589605ba4c78ffadf821007e5.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec5d76db9bd05547932966c9913dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2955d3f27ca4283615f167a291fc3d2d.png)
您最近一年使用:0次
解题方法
10 . 已知
,向量
,
,
满足条件
,
.则
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f6242b2b7a895a0fcd37e3d498f9d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843320f137a9bafe1a599160fdfbf328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.等腰直角三角形 | B.等腰三角形 | C.等边三角形 | D.直角三角形 |
您最近一年使用:0次