在区间
随机取一个数
,则取到的
满足
的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068a8f5bd5d0b627d4ed532a1da90a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9e9818d423bb28ad16ec5d29cd2b85.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-02-14 21:23:30
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较易
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【推荐1】从区间
内任取一个实数a,则双曲线
的离心率
的概率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1156a8b29780810bd472f6d9e11b0e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d79a9d7c59c061259eba07baded4941.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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【推荐2】b是区间
上的随机数,直线
与圆
有公共点的概率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228188b11f3a0d7e8afcd5aa1648b856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ab604fe08ec6f96fbc353ff6d54902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d22c4afd75d76767cbcbc59a3a2436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次