名校
1 . 已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c8a2cb1a8d9df7fa5fc1e7ea55d507.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc55b984934b60e547607173969bf1a3.png)
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2017-08-26更新
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407次组卷
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2卷引用:吉林省梅河口五中2016-2017学年高一下学期期末考试文数试题
2 . 已知函数
.
(1)求函数
的递减区间;
(2)当
时,求函数
的最小值以及取最小值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1672ab0b63b8a940bf753b3f79120da.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778662c16848db470c6537705b8a839c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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3 . 已知向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fb7e0486801a05543b474dbff236fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e989ccf28d88f34acb0ea548d820b9c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b820f8be21f56b1f987c1907d279d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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4 . 已知向量
夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/265614502d8ba2af7116910631a641d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7143c24a0f6abee7f14a3f1a8ddbb467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d147f1e8855d72692138905c2f6223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/265614502d8ba2af7116910631a641d9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 设点
是函数
的图像
的一个对称中心,若点
到图像
的对称轴上的距离的最小值为
,则
的最小正周期是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798af57938408f6e1fa1493c05242aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-08-24更新
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252次组卷
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2卷引用:吉林省乾安县第七中学2016-2017学年高一下学期期末考试数学试题
6 . 已知
是第二象限角,
为其终边上一点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22cea49ef50d603892feaf7c7eca4c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f131389cf044daced01fdec8b92713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b80751c98f9991b9cfc03923a98834.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-08-24更新
|
892次组卷
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2卷引用:吉林省乾安县第七中学2016-2017学年高一下学期期末考试数学试题
7 . 设
是两个非零的平面向量,下列说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
A.![]() | B.向量![]() ![]() ![]() |
C.![]() ![]() | D.若![]() ![]() |
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8 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab061f0b280f9b580f25fa40c620c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab061f0b280f9b580f25fa40c620c2f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-08-24更新
|
590次组卷
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2卷引用:吉林省乾安县第七中学2016-2017学年高一下学期期末考试数学试题
9 . (1)已知
,求证:
;
(2)已知非零实数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956a5ba24ff8a07aadbad2cebb17e17b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe33042d6695ceed9fd3169592d1aead.png)
(2)已知非零实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f7d39d320e5dfcf4cd5cf86955b7b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b869077b97624f38e8056c06b70a92af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f6e613ffa032e7e893daa1970d3948.png)
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解题方法
10 .
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7db04954285a15a3ca771a2c8e2509.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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