2020·全国·模拟预测
解题方法
1 . 由不等式组
确定的平面区域记为
,在
内任取一点
,则函数
没有零点的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153dd4cff532a6eadb61745c91ab0f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9ad1e34877b0db02d0219332b0f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeff8ee4381efe73e0e1edb0c281a99a.png)
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