如图,在菱形ABCD中,DE⊥AB,cosA=
,BE=2,则tan∠DBE=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://img.xkw.com/dksih/QBM/2017/10/11/1799266558787584/1810022961405952/EXPLANATION/e5622483abb34e55877e64d84538cfdd.png?resizew=183)
更新时间:2017-11-04 16:44:03
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【推荐1】菱形
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