名校
1 . 已知
.
(1)解不等式
.
(2)若
恒成立,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83885a8e289d2f6d47ae4c6d65472761.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46324ba9decd3f916f22df90f366588e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2 . 在精准扶贫工作中,某单位帮助农户销售当地特色产品,该产品的成本是 30 元/千克,产品的日销售量 P(千克)与销售单价 x(元/千克)满足关系式
,要使农户获得日利润最大,则该产品销售单价 x(元/千克)为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b1b5680d86bbfc64321fb7c57d6de9.png)
您最近一年使用:0次
解题方法
3 . 已知
,
,动点
在直线
上.
(1)求
的最小值;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3562df1e7c96301727ff84d0a8f3ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3198ad0fe126d27717008ba6b7270471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc366c9957fb9db552bfbb7d6a218b9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb1548ddc0e5536a35b1bd78c4e7cd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566911e63c824f77a97fef44cb89d3d0.png)
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名校
4 . 已知
,
,
,
为空间中不共面的四点,且
,若
,
,
,
四点共面,则函数
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1055ddc14ba63aaff65a68d0baac64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d491e80984e55c4a5bf0c2e28fa48c55.png)
A.2 | B.1 | C.![]() | D.![]() |
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解题方法
5 . 已知
为抛物线
:
上的一个动点,
为
的焦点.
(1)当
时,求
的坐标;
(2)若点
的坐标为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ba3a6326dc83632fa772c1d34cbff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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解题方法
6 . 若方程
的两个根是1和3,则对函数
下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1146110d4382c714c10de00dd1273b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
A.在![]() |
B.不等式![]() ![]() |
C.在![]() |
D.最大值是![]() |
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名校
7 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若方程
有两根,且两根为
,求
的取值范围;
(2)已知
,关于
的不等式
的解为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff29de3c174939abe222e5aea5fcf847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c847f857b8d1788d4ba414b82840ef5e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80e16bf315c0840f809713745720d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc887a6c34c3e2f859e6a59a9ed4cac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
8 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f7dc6d16aa6893b2fd21dee04197cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-07-27更新
|
326次组卷
|
7卷引用:陕西省安康市石泉县江南中学等校2022-2023学年高二下学期期中理科数学试题
名校
9 . 某商店进了一批服装,每件进价为60元.每件售价为90元时,每天售出30件.在一定的范围内这批服装的售价每降低1元,每天就多售出1件.当售价是( )元时,每天的利润最大.
A.60 | B.90 | C.80 | D.70 |
您最近一年使用:0次
2023-02-26更新
|
334次组卷
|
5卷引用:广东省汕尾市城区汕尾中学2022-2023学年高二下学期期中数学试题
广东省汕尾市城区汕尾中学2022-2023学年高二下学期期中数学试题广西钦州市灵山县天山中学2023-2024学年高一上学期期中考试数学试卷广西防城港市2022-2023学年高一上学期教学质量检测(期末)数学试题(已下线)高一上学期期中复习【第三章 函数的概念与性质】十大题型归纳(基础篇)-举一反三系列(已下线)模块一 专题2 函数的应用(人教A)2
名校
解题方法
10 . 若函数
是偶函数,定义域为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db9112daae21b9fabd6e62ab471849d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd6f230c7d5e95be89377e7b96253e0.png)
A.a = 3 | B.b = 0 |
C.函数![]() ![]() | D.函数![]() |
您最近一年使用:0次
2023-01-16更新
|
569次组卷
|
3卷引用:江西省吉安市双校联盟2022-2023学年高二下学期期中考试数学试题