若
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9082ee8dab6c1e4e325c9db6b9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d15b377e37c9e0fcbfce046148bdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb11486d3a76018fafff7b4b6c3356a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
更新时间:2022-04-10 11:12:44
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适中
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解题方法
【推荐1】若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2124045c00e6f734d97c6f38cc63bdcf.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2124045c00e6f734d97c6f38cc63bdcf.png)
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