名校
1 . 设
,对任意的实数
,记函数
(
表示
中的较小者).若方程
恰有5个不同的实根,则满足题意的条件可能为___________ .(填写所有符合题意的条件的序号)
①
;
②
或
;
③
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911fc7eab7f260fe061957ee9b548fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0898d7174604fa223558cb25b4c78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e133bf93b2fe08afaa8f96ce919de0f6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbe82295863faba6876c7b13d05ddb.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26492a3f9e0ea6f661d177330b83de72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad03d15ddcafb8abe3b8ac0520a88053.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe3d09f0ec653a57568fbd7ed5fc585.png)
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7日内更新
|
109次组卷
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2卷引用:陕西省安康市高新中学、安康中学高新分校2023-2024学年高三阶段性测试(八)理科数学试题
解题方法
2 . 下列说法正确的个数为( )
①
为奇函数;
②不存在
,使得
为偶函数;
③存在非零实数
,使得
为偶函数.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f16ac99ddcd1f3b99834a9912c477f7.png)
②不存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a597b3323cf20348eee73e2e555dfd.png)
③存在非零实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb86af94648ae185748f64bc58df935.png)
A.0 | B.1 | C.2 | D.3 |
您最近半年使用:0次
名校
3 . 记关于
的代数式为
,它满足以下关系:①
;②
;③
;④
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0762cfad158ad54cf978f31acd22dc39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c64e75167a521c18e32c6034d9fe26a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d32d7e01fa8d3d08ec3f76595662f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98d3e576b73314d4f56acfc3039fb28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9352754c215d45068abffbaafa93640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9b27b45d8b2dd74d6b7bcbedc87d27.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知函数
是周期为4的周期函数,且
,则
在区间
上的解析式为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a830452166cb8e1eaa418927d7d9d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b227f95c0e578ef5661d8dbba449e776.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
5 . 记函数
的导函数为
,
的导函数为
,设
是
的定义域的子集,若在区间
上
,则称
在
上是“凸函数”.已知函数
.
(1)若
在
上为“凸函数”,求
的取值范围;
(2)若
,判断
在区间
上的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465dd89d55b7ce9c010796b8cfda6dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29def170efc917451cb64b625e735ec1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a215072a06d124b82e3aae30a5e34fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
您最近半年使用:0次
2024-03-06更新
|
657次组卷
|
4卷引用:陕西省安康市高新中学2024届高三下学期2月月考数学(文)试题
名校
解题方法
6 . 若将确定的两个变量y与x之间的关系看成
,则函数
的图象大致为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近半年使用:0次
2024-02-03更新
|
1152次组卷
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4卷引用:陕西省咸阳市2024届高三下学期高考模拟检测(二)数学(文科)试题
陕西省咸阳市2024届高三下学期高考模拟检测(二)数学(文科)试题陕西省咸阳市2024届高三下学期高考模拟检测(二)数学(理科)试题 安徽省合肥市第一中学2024届高三上学期期末质量检测数学试题(已下线)新题型01 新高考新结构二十一大考点汇总-1
名校
解题方法
7 . 已知函数
的定义域
,且对任意
,当
时,
恒成立,则称
为
上的
函数.
(1)若定义在
上的函数
为减函数,判断
是否为
上的
函数,并说明理由;
(2)若
为
上的
函数,且
,求不等式
的解集;
(3)若
为
上的
函数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e132a45de8ed534195ffb18920b6db3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc1bc250c8a6523a1be394ff48d4a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee6ac9863b9f0be7bd5a49a4075468d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae55a418b4997978c4f0638c1b9f3a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3a80297256a8fa9e579a4fb7fbfa88.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0140f12a6b008fa7042ae682d85f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-12-12更新
|
183次组卷
|
3卷引用:陕西省部分学校2023-2024学年高一上学期联合考试数学试卷
解题方法
8 . 已知函数
则对于任意正数
,下列说法一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145d9003d0296f954d9823717fd009e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近半年使用:0次
2023-12-12更新
|
230次组卷
|
3卷引用:华大新高考联盟2023-2024学年高三上学期11月教学质量测评理科数学试题
名校
9 . 下列说法正确的是( )
A.![]() |
B.集合![]() |
C.函数![]() ![]() |
D.![]() |
您最近半年使用:0次
2023-11-30更新
|
636次组卷
|
2卷引用:陕西省西安市碑林区教育局2023-2024学年高一上学期教育质量监测数学试题
解题方法
10 . 下列结论正确的有( )
A.函数![]() ![]() |
B.函数![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.若函数![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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