已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c288750896bebcc13a94263039e2f00f.png)
______ (结果用a,b表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d586be112cea35ce289229e22bef7dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c288750896bebcc13a94263039e2f00f.png)
23-24高一上·江苏常州·期中 查看更多[2]
更新时间:2023-11-15 20:50:23
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