1 . 已知样本
的平均数是
,标准差是
,则
值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7dd3ac611986607b19b1db4e5679a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.8 | B.32 | C.60 | D.80 |
您最近一年使用:0次
2 . 某校高一(
)班共有
人,如图是该班期中考试数学成绩的频率分布直方图,则成绩在
内的学生人数为( )
![](https://img.xkw.com/dksih/QBM/2017/7/8/1732911348211712/1791114174406656/STEM/9ef4006cb3ad49cb864669581a0fab1c.png?resizew=426)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd2142368b10234525598c5c32dad846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03facc88b6456e14960080933687144c.png)
![](https://img.xkw.com/dksih/QBM/2017/7/8/1732911348211712/1791114174406656/STEM/9ef4006cb3ad49cb864669581a0fab1c.png?resizew=426)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-10-08更新
|
711次组卷
|
2卷引用:福建省2017年数学基地校高三毕业班总复习 计数原理、概率与统计(理)形成性测试卷
3 . 已知函数
,且曲线
在点
处的切线与直线
平行.
(1)求
的值;
(2)判断函数
的单调性;
(3)求证:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2df4029b5f73084652a3cdde5b33e06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc8e0a4e596e6b0a2f81e1f03fa0430.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6eed4d8a2eaad3a5bafee1d76ed2f0.png)
您最近一年使用:0次
名校
4 .
已知函数
,
.
(1)求函数
的单调区间;
(2)当
时,过原点分别作曲线
与
的切线
,
,已知两切线的斜率互为倒数,证明:
;
(3)设
,当
,
时,求实数
的取值范围
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99302b332b5dcb713e8b6b9e4da7e411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2150b0c0926d641eefb3a84716190eb4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b0bbcb6cace9731c0dd7550b6e6890.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed4a564800264a13770602d68d8e057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5de89467e97506fbd3f79833900c203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-10-08更新
|
735次组卷
|
2卷引用:福建省基地校高三数学(理)总复习 导数 平行性测试卷(B卷)
5 . 已知点P在曲线
上,
为曲线在点P处的切线的倾斜角,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7297032f0b88b0dd25e2327378f438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.[0,![]() | B.[![]() ![]() |
C.(![]() ![]() | D.[![]() |
您最近一年使用:0次
6 . 由曲线
围成的封闭图形面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19bdd4c295f26e80176aefc88f70720.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知函数
,
.
(1)若函数
在点
处切线方程为
,求
,
的值;
(2)当
时,求函数
在
上的最小值;
(3)设
,若对任意
,均存在
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d827f87e10a7848797480161dcf3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a1a5f2533b8ea54b7022383f875666.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87aba319e62dd0fe1c2db30759a8ded7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc5e86dbead2bde2fdb2aa0ac6c838f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7d0bc99c91ce51480ae55134d23db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c325eb8d56efe097f20d20c9489a5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
8 . 已知函数
,且曲线
在点
处的切线方程为y=3x+1.
(1) 若函数
处有极值,求
的表达式;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
(1) 若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ad8de3557298f9816c2d92461d985e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2) 若函数在区间[-2,1]上单调递增,求实数b的取值范围.
您最近一年使用:0次
2017-10-07更新
|
1038次组卷
|
2卷引用:福建省2017年数学基地校高三毕业班总复习 导数 形成性测试卷(文科,A卷)
9 . 已知函数
在
不单调,则
的取值范围是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b283dba8617ca633f4b5c864eb14b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987ee644169ad93379283ae715d8ebf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 设,若函数
在区间
有极值点,则
取值范围为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2017-10-07更新
|
1058次组卷
|
3卷引用:福建省2017年数学基地校高三毕业班总复习 导数 形成性测试卷(文科,A卷)
福建省2017年数学基地校高三毕业班总复习 导数 形成性测试卷(文科,A卷)(已下线)第三节 导数与函数的极值、最值(讲)内蒙古乌兰察布市北京八中分校2017-2018学年高二下学期第一次调考数学(理)试题