解题方法
1 . 已知实数
满足约束条件![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c75b787a00a0979d229f89df1b7ef14.png)
(1)若点
在上述不等式所表示的平面区域内,求实数
的取值范围.
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c75b787a00a0979d229f89df1b7ef14.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f6693700eb3d032e7d7a7634cba6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aba3f06a47c86b096f284cde5270594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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2 . 若平面区域
是一个三角形,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ce937ad6d2c789d19ca073f0d48a43.png)
您最近一年使用:0次