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解题方法
1 . 已知
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41817d5a584feb30a1d491058b434937.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202d5a3b191822c36e52ec9266ce49bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4742b55df4846a405f0ffc2845bb3f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41817d5a584feb30a1d491058b434937.png)
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2021-09-06更新
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3卷引用:江西省贵溪市实验中学2022届高三上学期第一次月考三校生数学试题