1 . 已知
.
(1)化简
;
(2)若
,且
是第二象限角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4d6019cf81cb79378a164ff712382b.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86032d2eca4a84da6962a016cfd7d33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed77a5dce1b06476dd157de4866888d.png)
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2 . 若函数
的图象相邻的两个对称中心为
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685313bc490951b13de06481f70e21b3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a8dfaead910e611916fcaa6c8635e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51760d73faae845b29624e57b2184c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da39bc5be89d23c682ba9578a4abba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685313bc490951b13de06481f70e21b3.png)
您最近一年使用:0次
3 . 已知函数
,则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5a951a4a8df40e4779d213f33ee8e6.png)
A.此函数的最小正周期为![]() ![]() |
B.此函数的最小正周期为![]() ![]() |
C.此函数的最小正周期为![]() ![]() |
D.此函数的最小正周期为![]() ![]() |
您最近一年使用:0次
4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5b10f8936eab4c92cfa546d0fa95db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5b10f8936eab4c92cfa546d0fa95db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 若向量
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acba6bcd252ceda4731046ef18daf38.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774c4492fe03f83c364cdc96346df3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d0a25a54f7f6211ef5a60f814a3bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72452cc769db86489edfd6bd0ec45fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acba6bcd252ceda4731046ef18daf38.png)
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6 . 已知向量
,
,若向量
,
同向,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966fa368ec6da7df558ca2d3c2d96f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a28e978269ea8ac5e3df90f3051b88c.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/b88584cf1df43e28d03592c7998b1653.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-03-06更新
|
992次组卷
|
3卷引用:2017届河北省张家口市高三上学期期末考试数学(理)试卷
7 . 设
,
,则
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6c5c420ea7c14daec1014fb6cfbc3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0eef742bb017d3f68c742255579cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65f506a999b87b24ab8c6430289ea17.png)
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8 . 已知向量
,
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62e129e83bac82e8a05d697e8f2478f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97221f14071b678ae293157670280d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4963c91a7d78723fbe8a78ad9b3eb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
9 . 已知向量
,
,若
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8f9e4aa8219744b4fa7484b5aa7ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e8493d179942e30e4d26008a88ea9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12976a4d92584494d1c2c714684d45b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 若将函数
的图象向左平移
个单位长度,则平移后图象的一个对称中心是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1ea0ff8fd48fd8045257fe624be714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次