真题
解题方法
1 . 已知
,且
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e533b8b204982c7d42001a20b9548a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b613b6ba25279f61b6a6ed13c4133f6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec393eec45c4b0d474902b23c3d70bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b613b6ba25279f61b6a6ed13c4133f6.png)
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解题方法
3 . 已知向量
,
,
,若
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990a3b215e4025ccabaec4c882747f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8ae08144881795cfd9193ae477da7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037d31ba398cccf9770084cfdedaf045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8363603e99b5d708c7c39361ce3d398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.-6 | B.-5 | C.5 | D.6 |
您最近一年使用:0次
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解题方法
4 . 已知向量
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05c50f2d2c6cedc884fecbd5c1a64b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ba996f653018f51802b36617c0923b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd8759a145547dbc5a95b372b5dd1f6.png)
A.2 | B.3 | C.![]() | D.![]() |
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5 . “角
的终边在同一条直线上”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c554fbe179740a911f93906f60979e2.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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解题方法
6 . 已知向量
,
,(
分别为正交单位向量),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08f8ca68a4995177eda5f52cd34a95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec72909f84718c44ee57ab7b7ff6a0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ddff55a16841901fb9b89d971d20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd01707e8d32f277b83c007a5b15bd7.png)
A.![]() | B.1 | C.6 | D.![]() |
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解题方法
7 . 已知点
,将向量
绕坐标原点O顺时针旋转
得到
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffb38cb0bd52d0dba8628ebcbca4edd.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdfc750fe0ace842a461e89f2b7b290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31dd289f71c1c828803e8a2831b99e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffb38cb0bd52d0dba8628ebcbca4edd.png)
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8 . 若函数
的一个零点是
,则函数
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9420f3b084d8e6114069cdfcda8cfaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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解题方法
9 . 已知向量
,那么向量
可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68f45a752c6f9e6122119b851f34b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 已知向量
的夹角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58b668c1cc0e030e92d249c0a72ca79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ff1e3430d938de2a95924fc30e9a1d.png)
A.![]() | B.![]() | C.![]() | D.5 |
您最近一年使用:0次