1 . “a<0”是“函数f(x)=ax2﹣2x﹣1在(0,+∞)上单调递减”的( )
A.充分不必要条件 |
B.必要不充分条件 |
C.充要条件 |
D.既不充分要也不必要条件 |
您最近一年使用:0次
解题方法
2 . 已知函数
,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f0b0c5bfc2fdbfffa20084b2038b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d2a70c569718c7b7497fc5a5bbae45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
3 . 已知
,函数
在区间
上的最大值是3,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f771eb64af29afc4ecad0a2119493f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fa5d8301f4b34a10f98b5929667357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-09-23更新
|
209次组卷
|
2卷引用:山西省2019-2020学年高一下学期期末数学(文)试题
名校
4 . (1)已知
是偶函数,
时,
,求
时
的解析式.
(2)已知函数
若
的最小值为
,写出
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56785f54453abeb59d7cbd09bfb4ec7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88219b8c89371e949246642b54d7bb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b36da3b4cc0a0cc408ef324b04c9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b36da3b4cc0a0cc408ef324b04c9d4.png)
您最近一年使用:0次
名校
5 . 已知函数
.
(1)若
的图像关于直线
对称,求
的值;
(2)若
在区间
上的最小值是
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22eb247ff03c2a8b9ecde38e6a9dfaa1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fc2b5839b8dc02f9a3e27f97203793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 已知点
,
,
在二次函数
的图象上,且
,则实数
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ae8145585f54463abe2d8c001db226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f25bb854783fc46bed37763bfb78f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7902eb9ce21f7dec2dc66da41fe245c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8f2ffa8f1b85c0fb5c3ac7ade6162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b44c63a912c9f07b80fb8f5bdde7a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2783756f090b58353c028c7b6acc5bc2.png)
(1)求
在区间
上的最大值
;
(2)若关于
的不等式
恒成立,求整数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d5ec5d686b88f3558ead72001563cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2783756f090b58353c028c7b6acc5bc2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82dca4a0e082b5cbdb1beb6f4d1e2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0225bca34eaf19544939b29153aac1.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89dad7702efff771c572aa50692fee12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
8 . 已知
,设
,若
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca50a82b2c859e541bef08746834b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6950ace4b5e4dde560f3d04b3de44e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00680cec2143c8abfef4dd9fddbe4032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a48c31513004ac8f658d5d794f8c1976.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
14-15高一上·北京海淀·期末
解题方法
9 . 已知函数
,其中
为常数.
(1)若函数
在区间
上单调,求
的取值范围;
(2)若对任意
,都有
成立,且函数
的图象经过点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592744129d3499498fee320ae874645e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2a1cdc648e160f65ffc4fd02829c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7601ca6f927996d1ab58bd869683c330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
您最近一年使用:0次
2016-12-02更新
|
817次组卷
|
5卷引用:2014-2015学年山西省忻州一中高一下期末数学试卷
2014-2015学年山西省忻州一中高一下期末数学试卷2015-2016学年山西省朔州市怀仁一中高一上学期期末数学试卷(已下线)2013-2014学年北京市海淀区高一上学期期末统考数学试卷(已下线)2013-2014学年北京市海淀区高一上学期期末统考数学试卷(已下线)5.4(附加)函数的周期性与对称性-2022-2023学年高一数学《基础·重点·难点 》全面题型高分突破(苏教版2019必修第一册)
解题方法
10 . 已知
,关于
的方程
,则下列四个结论中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fff4d51a6103822dfba0cdc2a053900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a77c851335f32d5d1c06ab9b527a2c.png)
A.存在实数![]() |
B.存在实数![]() |
C.存在实数![]() |
D.存在实数![]() |
您最近一年使用:0次