(1)已知2x=3y,求
;
(2)在Rt△ABC中,∠C=90°,AB=4,
,求sinA的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0401ed7502ab917959830ac026c86745.png)
(2)在Rt△ABC中,∠C=90°,AB=4,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
21-22九年级上·江西吉安·期末 查看更多[2]
更新时间:2022-04-11 13:20:17
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【推荐2】在
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【推荐1】(1)已知
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【推荐1】如图,根据图中数据完成填空或证明.
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