计算下列各式的值
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9386163ed2a6d15f3756bd545a0b16b.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094b8efcab5930311417794b05554c4.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9386163ed2a6d15f3756bd545a0b16b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094b8efcab5930311417794b05554c4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a940f02d5525e6834efa9e452c37e56e.png)
更新时间:2023-12-13 21:21:35
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【推荐2】对下列式子化简求值
(1)求值:
;
(2)已知
(
且
),求
的值.
(1)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c2438d6b60989c545cd9560f591af7.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcaa58f3430cc8d2cf099819931c121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9cf883ef6d904a63da518f3b67b014.png)
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解答题-问答题
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(0.85)
【推荐2】计算下列各式的值:
(1)
;
(2)
;
(3)已知
,
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7785280506b9f2370c7adabd5e9a97.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6364275514783cc9ec4758fc72370d41.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0317d5211e6afbf1ae502088b3ce1cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2881dab4ab7f81daec1defb8eea475cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4350514c24acc1943867a341199725d1.png)
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【推荐1】(1)已知
,
,试用
表示
;
(2)已知
(
),求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6527a1378205ff7c132bfb2d6f1e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d6b1456d35323cd4738998140b4275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195fa07b5344f1852668f49ae36ac4e6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d08a92e6ed65682f54180581ed304a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ad4de0e22de3136defeeffd3409ed7.png)
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解题方法
【推荐2】求满足下列条件的各式的值:
(1)若
,求
的值;
(2)若
,求
的值.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fd2d6e3ba00ad1a251aeeee949eb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94987f47504e21ccc3cd7ce940bdc092.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc4e3775c850f1c1804f9eb7a70153a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a38ae6ffd6338704815d6837351c651.png)
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