解题方法
1 . 如今我国物 流行业蓬勃发展,极大地促进了社会经济发展和资源整合.已知某类果蔬的保鲜时间y(单位:小时)与储藏温度x(单位:℃)满足函数关系.
(a,b.为常数),若该果蔬在7℃的保鲜时间为288小时,在21℃ 的保鲜时间为32小时,且该果蔬所需物流时间为4天,则物流过程中果蔬的储藏温度(假设物流过程中恒温)最高不能超过( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f012d5aaea19b88de11548c11a8c0e53.png)
A.14℃ | B.15℃ | C.13℃ | D.16℃ |
您最近一年使用:0次
2024-04-24更新
|
374次组卷
|
2卷引用:四川省雅安市神州天立学校2024届高三高考适应性考试(三)数学(理)试题
解题方法
2 . 已知命题
:对于任意
,不等式
恒成立,命题
:实数
满足
.
(1)若命题
为真命题,求实数
的取值范围;
(2)若命题“
”为真命题,“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9322dd8f56b5f8d2c667fdf0d4a9f9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a11b5ed4416fa40c30a760c9aaefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b88fd68d6d0d7439b06730f0a846c7.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-02-20更新
|
58次组卷
|
2卷引用:四川省雅安市天立学校2022-2023学年高二下学期期中教学质量测试数学(文)试题
名校
解题方法
3 . 已知
,且满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3eb9b6fe8959ae9e71e857b6d6fed49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83caa176de5a47b7c15c48467dc0fbf9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-10更新
|
595次组卷
|
3卷引用:四川省雅安市名山中学2023-2024学年高一上学期12月月考数学试题
名校
4 . 已知函数
与
互为反函数,记函数
.
(1)若
,求x的取值范围;
(2)若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5bbf1426b9fa7c4d49659797ef34ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c3b214e8326bdf7b17fb7911a6818f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa38ca27c6c0c40d5e36b2ae4fb7ba7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbb01a7f5e9861aa185c6c63fcd58c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
2023-02-19更新
|
805次组卷
|
9卷引用:四川省雅安市2022-2023学年高一上学期期末数学试题
解题方法
5 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534ad1e557ed593bed17301ffcc8a9e1.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
您最近一年使用:0次
2023-02-19更新
|
581次组卷
|
8卷引用:四川省雅安市2022-2023学年高一上学期期末数学试题
解题方法
6 . 如图,在边长为
的等边三角形ABC中,圆
与△ABC相切,圆
与圆
相切且与AB,AC相切,…,圆
与圆
相切且与AB,AC相切,依次得到圆
,
,…,
.当圆
的半径小于
时,(
),n的最小值为( )
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987717747597312/2991725813342208/STEM/082824fc4d154d0e93d851aecaef7645.png?resizew=292)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c296e45b84cf67a98939aa7334e7d478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b234b28e33a633de3b253227589aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8ce8c07e34224e2d25130ed27c9a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafff879e28b94313bf47f53409cc15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d4e8502106802f1485c3b0f28f2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002949fc4cb4aa9f33f158bf21ad6c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987717747597312/2991725813342208/STEM/082824fc4d154d0e93d851aecaef7645.png?resizew=292)
A.5 | B.6 | C.7 | D.8 |
您最近一年使用:0次
2022-06-01更新
|
366次组卷
|
4卷引用:四川省雅安市天立学校2022-2023学年高二上学期第一次月考数学(文科)试题
名校
解题方法
7 . 已知函数
.
(1)求
在
上的值域;
(2)解不等式
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ea990d2e4369fcbb7df357c4ecef11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a8449e8bb253065463c23f3ff5860.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a2ce5db64992d9cb3ee0269d7acd04.png)
您最近一年使用:0次
2021-11-08更新
|
1019次组卷
|
5卷引用:四川省雅安市雨城区雅安中学2021-2022学年高一上学期10月月考数学试题
名校
8 . 已知集合
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a4a0c08bb62934f8494e02c7e5708a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592a27381b265d925a5bfb9c52b1ecdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-10-14更新
|
282次组卷
|
4卷引用:四川省雅安中学2019-2020学年高二6月月考(期中)数学(文)试题
14-15高一上·四川成都·期中
解题方法
9 . 已知函数
在
上满足
,且当
时,![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/dff9e17276fb46f69580e167749c983a.png)
.
(1)求
、
的值;
(2)判定
的单调性;
(3)若
对任意x恒成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/d2eb24ddd6c348b292101d17af88c1bf.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/6c916f7a4281404c9452d66be37f96ae.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/a240608ac05e456991f1894fa1d9a3b1.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/c879726a66564a82a1daaa17328f14fe.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/dff9e17276fb46f69580e167749c983a.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/1e8e638e54804376bd7350069bac5d1a.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/d061aa32b16e4175a28903a0c92da050.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/92596081d5234a70ae588d53975c1382.png)
(2)判定
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/20f84fba1c474b9b9d487d27cc56ab48.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb234155088952c1cd22f5edf268416f.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571985848254464/1571985854177280/STEM/100a9844268645d89c4c7c75c779683e.png)
您最近一年使用:0次
13-14高二下·北京西城·期末
解题方法
10 . 已知集合
.
(1)求集合
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a53eb02b0cf678abe8470fc01d1db52.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d259db9bb0e132881e875a77d324057.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9fc64b15361e794a34ca5107807516.png)
您最近一年使用:0次