如图,阴影部分图形的面积为____________ (用含有
、
的代数式表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/a5743c6b-a873-420a-8950-250641ecffad.png?resizew=134)
更新时间:2019-11-06 06:22:11
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