已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8260277fcbf542bbe7e6110db4429967.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b364dfe4c8a05bdafa72d19b977e3e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8260277fcbf542bbe7e6110db4429967.png)
更新时间:2023-02-02 14:08:31
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【知识点】 对数的运算
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较易
(0.85)
名校
【推荐1】已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3489ea8dc8ad420e01136bc2fae54d80.png)
________ .(结果用a,b表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07d344e439fbf3f0e644bfc23f25974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eaa6c028841883dc53be9d12058f30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3489ea8dc8ad420e01136bc2fae54d80.png)
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