设
,
,把
用含
,
的式子表示,形式为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a08a2a5540efcdb5a77aa4ea3049884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850df3e299d9b1ecbda7e3a59e2a255e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc43c78ede79f9a1f8a6188e70fcbf40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
21-22高一下·浙江·期中 查看更多[2]
更新时间:2022-05-02 07:47:14
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,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57993a33ed262842945aba577028db1d.png)
____________ (结果用含a的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7ede18e918c2f96d56b96b65b2280c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57993a33ed262842945aba577028db1d.png)
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