已知实数
满足
,其中
是自然对数的底数,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2215771f8778941604bea74d5684dde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-01-10 11:30:59
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【推荐1】某种物体放在空气中冷却,如果原来温度是
,空气温度是
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57803eb0a9edf73fc2e90a8da110a4c.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
【推荐2】已知
,
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8defa3609942c946529ae4e5877177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773c2761dc456f7ef1a7f1403b3f05e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fc764c9c140fa31d24a50f799885d5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】已知正实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1952748235e4480a38f139f78f003985.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f7de45f1c490fe235b299257654d1e.png)
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【推荐2】设
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A.![]() | B.![]() | C.![]() | D.![]() |
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