化简下列各式
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485555f3bd60544e4d1252926b2afa4f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488c54ad5fad3fe7c2736f76abc55cbe.png)
更新时间:2020-02-18 15:56:29
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【推荐2】计算下列各式:
(1)
;
(2)
;
(3)若
,化简
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c0807e53d4e40d6b64e3f57f9e1b29.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bde4178c8422fd0690a125da66c25d7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6359b5061b323f92c4c54e3fcdd783bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1fcff1ad46c8e4304833a16540c0c4.png)
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