计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e32a1cb94c15f15623f20d880d91394.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf70b4fcf5a076aedeac3b4245fe49e.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348bab0c0a938df6b14452d516d74dcc.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e32a1cb94c15f15623f20d880d91394.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf70b4fcf5a076aedeac3b4245fe49e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348bab0c0a938df6b14452d516d74dcc.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0b5b2761c96a7c9ee5d75d915b380b.png)
更新时间:2022-09-26 09:21:51
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解答题-计算题
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适中
(0.65)
【推荐1】(1)计算:
;
(2)已知
,求
的值;
(3)先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f6135378729183ff26bf7f9b209f9c.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32deb6b64f19334a54d6af759aa8d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e71f9c49619efe23708a23ab30d147.png)
(3)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2724f459d36497e2fcf2242da318b6ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74490a23cd584fd39cea93ca3ca07106.png)
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