已知
为锐角三角形,
,
,
.则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891a89afaeeef8a368439d3ceacea7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844b0b77cdb161524e71b903497c055d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86471051bbe29e35c5ef1e3dca10aad.png)
A.![]() | B.![]() |
C.![]() | D.以上三种情况均有可能 |
2018高三·全国·竞赛 查看更多[1]
更新时间:2019-03-08 18:25:38
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