如图,在由九个相同的正方形组成的九宫格中,
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/7057e7f6-ecdd-418c-b23e-19f6725f8795.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ddaadc47ecd64f2c67959880fcb456.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/7057e7f6-ecdd-418c-b23e-19f6725f8795.png?resizew=148)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-12-16 17:47:33
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【知识点】 用和、差角的正切公式化简、求值解读