(1)设
,求
的值;
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4909203783f49d4040b59ab543fd89af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfa14a61410f49e3f880c04d602cfc6.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b6d766649358b03bc7984b01aa9509b.png)
19-20高一上·河北唐山·期末 查看更多[2]
更新时间:2020-02-03 21:49:39
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