1 . 已知函数
,给出下列四个说法:
①函数
的周期为
;
②若
,则
;
③
在区间
上单调递增;
④
的图象关于点
中心对称.
其中正确说法的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f52d9dcb204dcdd96478628c1cc0c45.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d5adfe85535b699655d5ed2f3322d8.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84ab8bcdcefc73d283ea79f09ed11fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8eb36db48ad937da244c35b1d6e0c7.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7402fee1d1f39e2f8e1d42fea08b7d.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ad986c88eb5b398019f26c9fe04d0d.png)
其中正确说法的个数是
A.3个 | B.2个 | C.1个 | D.0个 |
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2 . 平面向量
中,若
,且
,则向量![](https://img.xkw.com/dksih/QBM/2016/11/3/1573121182359552/1573121188446208/STEM/0c6f74d43fcb44149fd5882ca8cc37a0.png?resizew=25)
__________ .
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573121182359552/1573121188446208/STEM/7eedc14a5d344116a934618ef3aeebf3.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573121182359552/1573121188446208/STEM/2ab0bc86d3014216979a89184f4bcdd1.png?resizew=113)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573121182359552/1573121188446208/STEM/7a09a6968a4447d3a350e14f03007d30.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2016/11/3/1573121182359552/1573121188446208/STEM/0c6f74d43fcb44149fd5882ca8cc37a0.png?resizew=25)
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3 . 若
,则向量
与
的夹角为
![](https://img.xkw.com/dksih/QBM/2016/12/27/1619412271636480/1619412271783936/STEM/e598e3cac35b4387840aa6f73dd6eb96.png)
![](https://img.xkw.com/dksih/QBM/2016/12/27/1619412271636480/1619412271783936/STEM/6dea4a67121e4c7b9249f44e959bd702.png)
![](https://img.xkw.com/dksih/QBM/2016/12/27/1619412271636480/1619412271783936/STEM/d36d3d972a0e4732b982087623e54b64.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2014·河南郑州·二模
4 . 已知
中,平面内一点
满足
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a366cb0b165e026a089bb2718fff80b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b980a3075b5af2bcc80e2a99bcb93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知抛物线
上一定点B(1,1)和两个动点P、Q,当P在抛物线上运动时,BP⊥PQ,则Q点的纵坐标的取值范围是
![](https://img.xkw.com/dksih/QBM/2015/10/20/1572259713720320/1572259719733248/STEM/1fcbebc339d94d808d735ddc6a8bfc2e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 若直线
是函数
(其中
)的图象的一条对称轴,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a4abf89a16078efb63fca8b3d594f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bb646ac85e201aea3b63612190390f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26061b89df9146256597157afff8cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cada4595e617c68c84c8081c2f70dcb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 如图,在△OAB中,P为线段AB上的一点,
且
,则
![](https://img.xkw.com/dksih/QBM/2016/11/28/1573185125146624/1573185130823680/STEM/ce5c617b6a994ece8be1f58227d375e4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/28/1573185125146624/1573185130823680/STEM/d45ba9c6b3d94b4491cdfa63d9360527.png)
![](https://img.xkw.com/dksih/QBM/2016/11/28/1573185125146624/1573185130823680/STEM/83247efa562c40879173e4b61dd286a6.png)
![](https://img.xkw.com/dksih/QBM/2016/11/28/1573185125146624/1573185130823680/STEM/ce5c617b6a994ece8be1f58227d375e4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
8 . 将函数
的图象上各点的横坐标压缩为原来的
倍(纵坐标不变),所得函数在下面哪个区间单调递增
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9af6680d2a3b90eae63448d5407739e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
357次组卷
|
4卷引用:2017届广东韶关市六校高三10月联考数学(理)试卷
2017届广东韶关市六校高三10月联考数学(理)试卷2016届湖南省东部株洲二中六校高三12月联考文科数学卷湖北省枝江市第二高级中学2017届高三下学期高考模拟数学(文)试题(已下线)2017-2018学年度下学期高中期末备考 【浙江版】高二【精准复习模拟题】 拔高卷02【教师版】
9 . 如图,正方形
中,
分别是
的中点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608a6a3d786b95bf5fcc50b228812ff6.png)
![](https://img.xkw.com/dksih/QBM/2016/8/24/1572987384979456/1572987390722048/STEM/a62333ebb18e43ddb9d9f72817d4488f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720eca6dda7eecc59faa6c65f42e4618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a324ad4c38b901ef95a62d7f13508b5d.png)
![](https://img.xkw.com/dksih/QBM/2016/8/24/1572987384979456/1572987390722048/STEM/ab9dc17919514a499c43945c296fb173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608a6a3d786b95bf5fcc50b228812ff6.png)
![](https://img.xkw.com/dksih/QBM/2016/8/24/1572987384979456/1572987390722048/STEM/a62333ebb18e43ddb9d9f72817d4488f.png)
A.2 | B.![]() | C.![]() | D.![]() |
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10 . 已知
=
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547205632/STEM/6e28b810b255484a8a984d33ba76605a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次