设
,函数
在区间
上单调递增,在区间
上单调递减.
(1)若
,求
的值;
(2)求函数
在区间
上的最小值(用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4360ce512aea78e001e81beaf19e1b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a6fa02d56e7338c83cf1ae518e3ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b2c7922c3e592e72f485ff673a9842.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af8a75c925c0f53bbac63630b4e6e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
更新时间:2018-07-12 22:12:04
|
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解答题-证明题
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适中
(0.65)
名校
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cdb6b28c106f33b7107bfb12eeccf07.png)
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(2)根据函数单调性的定义证明函数
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(3)若函数
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(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)根据函数单调性的定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9e66b73038b6279d204a47a78902ad.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc8d1bb75cfbcee6bd0f23d824d74cc.png)
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a708be8c2e191f777b0cc41ac227a13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddeeb5d13a3a8fee77cd647ca3ba584d.png)
(1)若
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(2)在(1)的条件下, 当
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且
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能否大于零?请说明理由.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddeeb5d13a3a8fee77cd647ca3ba584d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3355b8aa65d6b56cf278d7e53c4dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd6418e57e15f2bebd3fab511fffc92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)在(1)的条件下, 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b1167854b5c23ec148f141b131ca07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6b28c29a9e823cf1d6c764323d7e15.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4aa46e2bdec36770ee57fe67639ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d73dbad6daa9a94a0b88f28f3c41e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde5899ab8503b1da059bf37311bd819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae48677f8f6e1eaa980756a18378e593.png)
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您最近一年使用:0次
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适中
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【推荐3】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05769761bd6def164822065d7a7e4e7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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