名校
1 . 设动直线
与函数
和
的图象分别交于
、
两点,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5d86659a17071c0ea6d4924250b389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb9198ee7e185b46292fda32aaf7eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
2017-02-16更新
|
586次组卷
|
3卷引用:2017届福建连城县三中高三文上期中数学试卷
2 . 已知
为同一平面内的两个向量,且
,
,若
与
垂直,则
与
的夹角为
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/64c345b4558f4d7c840e30a04e6a3f0a.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/890d49d7e5f1409d9efa17ef32b324e3.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/6b9d93ff8b9144baa987e9835901cf10.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/354eb4e853984e88a30f9e499dd6ccfe.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/4cb67043e34a4286b8ffc393652d2f73.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/eed4bf4037554afbbdcc289d36e23509.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862816256000/1572862822129664/STEM/894d3bc859cb4dd48be56a4059eb974b.png)
A.0 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 过圆
上一点作切线与
轴,
轴的正半轴交于
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
2016-11-23更新
|
278次组卷
|
3卷引用:2017届福建连城县三中高三文上期中数学试卷
4 . 已知两点
,若向量
与
垂直,则实数
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7bf88a3af63a218692018c5f2ea879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b24d162a5b1cbc9c310262ff15d60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
5 . 函数
的值域为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45047c4726a99d618be8874876346870.png)
您最近一年使用:0次
6 . 将函数y=cosx+sinx(x∈R)的图象向左平移m(m>0)个单位长度后,所得到的图象关于y轴对称,则m的最小值是
A. | B. | C. | D. |
您最近一年使用:0次
7 . 已知
,则
等于
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478281216/STEM/284a0306b687470892f4129aa4551d0b.png)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478281216/STEM/e935eda8480b47b589e85eba4de83122.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知点
在
内(不含边界),且
,则
的取值范围为
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478633472/STEM/3dd951d6ffd94d2398ecc0349b5b7a66.png)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478633472/STEM/50d4b2a516b445f5b4287dca1de9ecef.png)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478633472/STEM/101cdc96b6b344ef92f8cd17f652cdaf.png)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573005310181376/1573005478633472/STEM/2a5cc414430f4777aa393f336645d3b2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知两个非零向量
满足
,且
,则![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431100874752/STEM/eed91341543b4a92819db8a9dd66d6e8.png)
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431100874752/STEM/85c7e55fdac24df69fccfccfd380db44.png)
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431100874752/STEM/ced32455671e47e888a3b1344257349c.png)
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431100874752/STEM/196651a2aede4b459064878e15da798d.png)
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431100874752/STEM/eed91341543b4a92819db8a9dd66d6e8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知边长为1的等边三角形
中,E是BC的中点,
,则
.
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572959918194688/1572959924322304/STEM/dc5f95e57674433b9edc83c4826ff4ea.png)
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572959918194688/1572959924322304/STEM/79b57894e3dd498992d1e80422cce5c6.png)
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572959918194688/1572959924322304/STEM/ee0d209b36c347b088d044df71d15f36.png)
您最近一年使用:0次