1 . 已知实数
,
满足
,则
的最大值与最小值的差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd6258b4e90841e91adb6bc48c7a9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7c99486743e17633d086d868f0680c.png)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次
2020-04-23更新
|
119次组卷
|
3卷引用:3.3.2简单的线性规划问题(2) -2020-2021学年高二数学课时同步练(人教A版必修5)
(已下线)3.3.2简单的线性规划问题(2) -2020-2021学年高二数学课时同步练(人教A版必修5)2019届百师联盟新高三开学摸底考(全国II卷)理科数学试题2019届百师联盟新高三开学摸底考(全国I卷)理科数学试题
2 . 在平面直角坐标系中,不等式组
表示的平面区域的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb715a2d32eb54b901c29de9d690eda.png)
A.![]() | B.4 | C.![]() | D.2 |
您最近一年使用:0次
2020-04-23更新
|
88次组卷
|
5卷引用:四川省绵阳南山中学实验学校2019-2020学年高一下学期开学考试数学(理)试题
解题方法
3 . 平面内向图形
:
内投1000个点,则点落在
所确定的区域内的点大约有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dccf7fdc9ff5e9e6ed897ec3a716a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3214fbade5bd55bf078b6f68318744b.png)
A.182 | B.818 | C.240 | D.318 |
您最近一年使用:0次
解题方法
4 . 已知实数
满足
,令
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b917b1cd5e9e64ab05f7e80f2b1ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c23653f335ac7d4b8f78cafba9ea116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.16 | B.32 | C.24 | D.36 |
您最近一年使用:0次
5 . 设满足约束条件
的变量
,
形成的区域为
,有下列四个命题:
:
,
;
:
,
;.
:
,
;
:
,
.
其中正确命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f542322714786497eb3e55975a29bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0c5a96a4f87442cbfc05e59de281ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8b7355db79b083bc5f47a4fb65108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0c5a96a4f87442cbfc05e59de281ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70723cb009d2e2ed435d31dd9c8818a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b21b872313f7d8c5b606981f954a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9309362eb34cd9d0d5757836f8d2fc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8b7355db79b083bc5f47a4fb65108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc119550ce4fc5f3d1daf996e7243bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9309362eb34cd9d0d5757836f8d2fc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70723cb009d2e2ed435d31dd9c8818a7.png)
其中正确命题的个数为( )
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
6 . 不等式
的解集记为
,有下面四个命题:
;
;
;
.其中的真命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df891d9cc5a998a1d73bd4cde98e225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7af6baf7f4f14a043113c3ba11735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4489fd65c462b232b546334f49a4f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75e5d61ff3e05afe706efe55a65c050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edd31ad55b7f8c3963ca03d6c6c4cc2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 若实数
满足约束条件
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60209fa4162fc7335ebd91c0c33f6533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd106a32d79f1c68b7163990113312e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee51b0cac927e6445e4b94438c2ff3da.png)
A.1 | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-06更新
|
177次组卷
|
3卷引用:专题14 不等式-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(浙江专版)
(已下线)专题14 不等式-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(浙江专版)浙江省绍兴市诸暨中学2020-2021学年高二(平行班)上学期10月阶段性考试数学试题浙江省之江教育评价联盟2019-2020学年高三第二次联考数学试题
解题方法
8 . 若不等式组![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709876b271073b391d7b10328b499736.png)
所表示的平面区域的面积为4,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709876b271073b391d7b10328b499736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e3dd9e83f8ef3b11b1bff6fcd73ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1995404eb114809bc18fbdb4f1388b2.png)
A.![]() | B.![]() | C.[-4,2] | D.![]() |
您最近一年使用:0次
名校
9 . 已知函数f(x)=(x﹣3)2﹣1,则平面图形D内的点(m,n)满足条件:f(m)+f(n)<0,且f(m)﹣f(n)>0,则D的面积为( )
A.π | B.3 | C.![]() | D.1 |
您最近一年使用:0次
2020-03-21更新
|
586次组卷
|
3卷引用:广东省佛山市顺德区2020届高三第三次教学质量检测数学(文)试题
10 . 若点
,点
在直线
的两侧,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e396c83557ec8b2b4b12d97d6738819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be485f9f62f7fbc10e5506e8bab06d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次