先化简,再求代数式
的值,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78516f6d7f54c7ed5bd57357b59fb0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
更新时间:2023-01-13 18:32:21
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解答题-计算题
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较易
(0.85)
【推荐1】计算和化简求值.
(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4622977d94caf3a101de0be69055cafa.png)
(2)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ad29e6adbdf1446d8e569e675423f6.png)
(3)先化简再求值:
,其中
.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4622977d94caf3a101de0be69055cafa.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ad29e6adbdf1446d8e569e675423f6.png)
(3)先化简再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23f4b61cb5c61e9e46ed4693959eabc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cacbe19e2dffb91a06e5bf5a4bf9ea3.png)
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