解方程组和不等式组:(1)
;(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f67896841bfaf3ada67b9a977e94971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0041f1c39f038f64125a48a91ed0f1af.png)
更新时间:2016-12-05 18:21:25
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解答题-计算题
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较易
(0.85)
【推荐2】(1)计算:
(2)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea62bd535cbab82930bcaa87016163ad.png)
(3)解方程组:
(4)解方程组:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39456ca3abc0a5e5eb38ca16b1fe2819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea62bd535cbab82930bcaa87016163ad.png)
(3)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff77e45f7ea186533a89bf8e282fd06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e384fd2ebf32a40c6bd7af8a4e73c5d.png)
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