化简:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b215d2edf732ad6eccfb58eff4a4d6b.png)
更新时间:2021-12-06 11:18:54
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【推荐1】(1)计算:
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(2)计算:
;
(3)解方程:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f2d1f4f0fd523016a57b390f94975a.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54a19eaa61c1bc705f60f3f018149fa.png)
(3)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4225f4dadac62f9c74fdb908d1b733.png)
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