求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958846f658848681730d7ff6858dac38.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227f9f11d10f73114f8024af8d9a2494.png)
更新时间:2022-12-13 17:10:50
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