1 . 已知函数
,若方程
有四个不等实根
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1351454f35775e2a31eb186b60ed9fe9.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cfadadc99fb3a9c5b05762f5ea141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde097fd84d6e5c522d1f34ad16b8ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040135d64192de075ba0cc9f11ddbc9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa33c2bd791339d32821077846605d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea68e3e47a094d30bcda211741da5d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f17f01f2eeaca8e038215655252a684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1351454f35775e2a31eb186b60ed9fe9.png)
您最近一年使用:0次
名校
2 . 已知函数
满足
,当
时,
,那么函数
的零点共有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c25fb0c3e1b6ef211233170b9aa9001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187de8d0030ac7e16c1fe3a2b3ccf5a.png)
A.7个 | B.8个 | C.9个 | D.10个 |
您最近一年使用:0次
2019-03-12更新
|
815次组卷
|
5卷引用:【市级联考】四川省德阳市2018-2019学年高二上学期期末考试数学(文)试题
【市级联考】四川省德阳市2018-2019学年高二上学期期末考试数学(文)试题【市级联考】河北省廊坊市2018-2019学年高二第二学期期中联合调研考试文科数学试题河北省廊坊市2018-2019学年高二第二学期期中联合调研考试文科数学试题安徽省亳州市涡阳县第一中学2019-2020学年高二上学期入学考试数学(文)试题(已下线)专题03 导数与函数的单调性、极值、最值问题-2022年高考数学毕业班二轮热点题型归纳与变式演练(新高考专用)
3 . 函数
的零点个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b40442cf46a386a5b9f9deca6c65f36.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
4 . 已知函数
与
的图象上存在关于
轴对称的点,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925a49271b52b2083e11c34148d0332a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e691f234ee5e1cea4e61a8df8795e436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-01-26更新
|
414次组卷
|
2卷引用:【市级联考】四川省攀枝花市2018-2019学年高一上学期期末教学质量监测数学试题
名校
5 . 已知函数
.若对任意的
,总存在实数
,使得
成立,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425b88a6fb6d1ee3fee2d339960806b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec80634a6e2b2c85f845fa368b3a5969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba85f1d386c0852978970b4bbafbf3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-24更新
|
490次组卷
|
3卷引用:【市级联考】四川省遂宁市2018-2019学年高一第一学期教学水平监测数学试题
6 . 已知集合
.
(1)判断
是否属于
;
(2)判断
是否属于
;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e451fb12a12ebc95538fc12207f450ea.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ede389b43c78417912542746d91d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4a93f87af7c854415faae61d6a3770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512db6c101b73a45350ff81e8134d66c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-01-24更新
|
341次组卷
|
2卷引用:【市级联考】四川省遂宁市2018-2019学年高一第一学期教学水平监测数学试题
7 . 已知函数
,若方程
恰有5个不同的根,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54746fe43aa7af0a512f6bb0517f5f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a005e3283d58d9ac7124e42523ef3f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-23更新
|
774次组卷
|
3卷引用:2020届四川省巴中市高三第一次诊断性数学(理)试题
8 . 已知函数
和
(
且为常数).有以下结论:①当
时,存在实数
,使得关于
的方程
有四个不同的实数根;②存在
,使得关于
的方程
有三个不同的实数根;③当
时,若函数
恰有
个不同的零点
,
,
,则
;④当
时,关于
的方程
有四个不同的实数根
,
,
,
,且
,若
在
上的最大值为
,则
.其中正确结论的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9532b82d143016ba50b5f70fef1f2885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5639aa1f6b98003e04afb9da10221e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9aaf0f759218b02c102fc3f8b7ec45a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e497094847e645abacbe289cc92ee35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c06068ac2d0da29abec54df3f84347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a6799a630d8d73e27f69263435b8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc1f6b3a2ae4903cca5d30a99edbb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2743d0701b3edb066f7a7f89b2a5dbc2.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
2018高一上·全国·专题练习
9 . 已知函数
,若函数y=f(x)–m有三个不同的零点,则实数m的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc16c0fb0c00e28c5fb2129670c7762f.png)
A.[1,2] | B.[1,2) |
C.(1,2] | D.(1,2) |
您最近一年使用:0次
2018-12-28更新
|
1708次组卷
|
4卷引用:四川省广安市2019-2020学年高一上学期期末数学试题
四川省广安市2019-2020学年高一上学期期末数学试题四川省宜宾市叙州区第二中学校2019-2020学年高一下学期期中考试数学试题(已下线)2018年12月28日——《每日一题》高一人教必修1+必修2(上学期期末复习)-函数与方程(已下线)2019年10月27日《每日一题》必修1- 每周一测
名校
10 . 已知函数
,
,(
,
为常数).
(1)若方程
有两个异号实数解,求实数
的取值范围;
(2)若
的图像与
轴有3个交点,求实数
的取值范围;
(3)记
,若
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2b118efab9082578566aa80d0c8ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de70588c273844ec5b0ebf03906de9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f168b6811f1da5f09db1d9984ad8664f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86008c304a39e8ae9b3550d73e63bfbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0109d06b8be2e402b5ffbb0aeb501009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-11-18更新
|
1039次组卷
|
2卷引用:四川省成都市棠湖中学2018-2019学年高一下学期期末考试数学试题