名校
解题方法
1 . 用
表示
个实数
的和,设
,
,其中
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7653f0c617f5cd5b5cb60854786c0ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8436f067b7e4048dd0335f3fdb7e27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf239a33570509f501b6d72f06fcb5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f51579da866b7820a5eececc876d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686a1744d20de084e8dfe1bf59333d27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6880c909f8de6daa103be8cf453d9d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
A.![]() | B.![]() | C.![]() | D.![]() |