某同学对如下的问题进行探究.如图,
中,
,点E、F在边
上,
.由上述条件该同学得到以下两个结论:
①
;②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec735d83c0f18d537724bcd5dd8c57f.png)
对于结论①和②下列说法
的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/14/fbb05d2d-c10a-4c14-8305-45426a946d20.jpg?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc88cee9225f117ccfe6a4cd3a3a1e42.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2466275bd905af456630a61c5968f57a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec735d83c0f18d537724bcd5dd8c57f.png)
对于结论①和②下列说法
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c594bca68a405d8e785dc88762f9207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/14/fbb05d2d-c10a-4c14-8305-45426a946d20.jpg?resizew=178)
A.①错误,②正确; | B.①正确,②错误; | C.①和②都正确; | D.①和②都错误. |
更新时间:2023-11-14 10:39:14
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