解题方法
1 . 已知点
的坐标是
,点
的坐标
满足
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea4f80a7fe329e219fccd259422b1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c2aa6c50ad8a9091b159f940d0557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315ab131436e3652521625c439c293a3.png)
您最近一年使用:0次
解题方法
2 . 若
,
满足约束条件
,则
的最小值为________ .
![](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/4cda901c635a2a158c2b25fd29c7ee55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
,
满足约束条件
则
的最大值为
![](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/1a735f235b361719d1f22c34c8fc4bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a311167ece8f398964da7e13c3a8a278.png)
A.6 | B.8 | C.9 | D.12 |
您最近一年使用:0次
2020-08-07更新
|
169次组卷
|
2卷引用:湖北省荆门市龙泉中学2020届高三下学期高考适应性考试(二)数学(理)试题
解题方法
4 . 若点
满足约束条件
,则所对应的平面区域的面积为______ ;目标函数
取得最小值时的最优解为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3313a7076ae122a91a509183099877fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a125cb40ab3d54de9f3a444032af5e4.png)
您最近一年使用:0次
5 . 若直线
上存在点
满足约束条件
,则实数m的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a9b769d70cb6f29e965c800921c8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9408481f211cc582dd8c615c9ceddb32.png)
A.-1 | B.1 | C.![]() | D.2 |
您最近一年使用:0次
解题方法
6 . 已知实数
,
满足
则
的取值范围是______ .
![](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/1975b405a570c86280b6d35daba0bd2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
解题方法
7 . 设实数
,
满足
,则点
形成的区域面积为______ ;
的最大值为______ .
![](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/99a106232edfee8347ae2fa14837d875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
您最近一年使用:0次
8 . 在平面直角坐标系中,不等式组
,所表示的平面区域的周长是
,那么实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795a2b09e2b2eba9dc68c1e2697f2153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2eeea823136ef9fccdcc9f181247cbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
9 . 已知实数x,y满足约束条件
,若可行域表示的平面区域为三角形,则实数k的取值范围为_____________ ,当
时
的最大值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d1de051d6c7e3f954bcf2712446071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4489516aca67a6afe53fac2f1477f76.png)
您最近一年使用:0次
名校
10 . 设不等式组
所表示的区域为
,其面积为
,下列命题不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b3bbf2a4021ad22595250c3ac2deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次