已知当
时,
的值为
,则当
时,
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ecb3ede7ad13c274620280209dc9f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6ce208de88957096b3524a15ea1380.png)
更新时间:2020-11-21 05:57:38
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【知识点】 已知式子的值,求代数式的值解读