计算:
(1)
(简便计算);
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f7552a667297dc53cdaef1eac1e037.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3ff8daa38220408bd3974af333b3f7.png)
更新时间:2024-04-27 14:07:31
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解答题-计算题
|
较易
(0.85)
【推荐1】(1)当
,
时,式子
的值是________;
(2)已知
,则
是________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b6007755a3d2f4a4e09db6f66e512a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad25cce749b10c904272605f643a7883.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4334e343daae170f14d086661bc5792a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3d73558c8db509a32b7952d64f4371.png)
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