(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e6ee0caec3482d406e959f08dadd3e.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e6ee0caec3482d406e959f08dadd3e.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29c5cb915dfc0728fab725cf69241df.png)
更新时间:2023-07-24 20:46:39
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您最近一年使用:0次
解答题-问答题
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【推荐1】已知
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您最近一年使用:0次