计算:
(1)
;
(2)
;
解方程组:
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500da453ac48912c279fe6d8e2edf3ba.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902eef45500934ea4e3147a5c1711271.png)
解方程组:
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b80f3016e12ebb30a242d74255879f3.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58089b00d63509c55b4c9ef12b97dc4c.png)
更新时间:2024-04-21 14:46:42
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解答题-计算题
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【推荐2】计算下列各题:
(1)
;
(2)
;
(3)
.
(4)先化简,再求值:
,其中
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82858d24dca9c683d89d95c541d79037.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b934a5f5606ae2aec3893d5cd7d740fc.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdc36c0e6c19b46b7a5df8c9c94136e.png)
(4)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7dd939deddd44b017d6f1ca44db3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
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