如图,在
ABC中,∠ACB=90°,AB=10,AC=8,CD⊥AB ,则sin∠BCD的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/0b6ea37f-8a73-4ec4-a269-4f60443b2600.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ca0b3b0631e9760b0cdac592f8b909.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/0b6ea37f-8a73-4ec4-a269-4f60443b2600.png?resizew=132)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-11-23 10:28:57
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【推荐2】如图,点
在三角板的斜边上,
,以
为半径作圆
,交斜边于另一点
,其中
为
.则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c78f77e5b86ccd537e5f027de9ffe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc429b03d4861118ae95062cd4213f8.png)
A.![]() | B.![]() | C.![]() | D.1 |
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