已知函数
.证明:对
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb6db5f1d7131b5e49f645af76938d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f26934baad559d29747572b40b5761.png)
更新时间:2023-11-10 22:03:02
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【知识点】 作差法比较代数式的大小解读
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】求解下列问题:
(1)已知
,比较
和
的大小;
(2)已知
,比较
与
的大小.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ff5b6b88270059663fe0a98d7945b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89156f31a07d467bd21ea70f9d582546.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b95d36ec16dda11d0dedcbe221fb03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf35027e76f8ea593f82023973d4aba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb5619e7d6c00ba2bd2e706dd827e7.png)
您最近一年使用:0次
解答题-问答题
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较易
(0.85)
名校
解题方法
【推荐2】(1)已知
,且
,比较
与
的大小;
(2)已知
为正实数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b21208364124b5c477b2ff8df1c2e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a9bcbc55d73d2a4babcdbffcbe767c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da962b9b5bc2c32b7a88b6969dccdc84.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5cb8160f60ea06bf2cdef63accf3f74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d22997dd46570d6e7535e5c2ae05f5.png)
您最近一年使用:0次