1 . 如图所示的电路中,电器元件
,
,
正常工作的概率分别为
,
,
,则此电路不发生故障的概率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a724b59c890095baa5cb73e267c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9275bd8ce17fcc4a786510b008414ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c5f3a5c55e0c95191c5a893f63062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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2 . 甲,乙,丙三个同学独立求解同一道数学题,他们各自解出该数学题的概率分别为
,则这道数学题被解出来的概率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1a2287bc26d4129a4e396af3a945fd.png)
您最近一年使用:0次
2022-01-02更新
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774次组卷
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2卷引用:云南省弥勒市第一中学2021-2022学年高二上学期第四次月考数学试题