设
.
(1)求
的单调区间;
(2)已知
,若对所有
,都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581bdb6d280a4364a376971b3a8b3839.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6804d95ea14b2540cd1ac5698043b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0879734ee766cb630cfeb3f25fea7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-05-25 10:45:40
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解答题-证明题
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【推荐1】已知函数
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(1)判断函数
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②
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(1)判断函数
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(2)证明:①当
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②
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f26cc366989b203c047e13db8de54d.png)
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(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47352a6ebe48c4d92e32275a4f32dc4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
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1)求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5666a5806560240d48d5b335ede516be.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6aa5ec6172d70ab693efd6987d92301.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e05350ccacf6a3ad484df27d879805e.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f2d2e41b038f29ecd140ff791ddbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
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②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129c56e1b0075b1d4a1fa34b2b13f108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解答题-证明题
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解题方法
【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79338d5c2fcc186d046eae0a10465932.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66ba4aa3a5f3036b1c000f2b99e70c3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c642de19a879df2e18cc5c5c44bd5b07.png)
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【推荐3】已知函数
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(1)若
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936654c9cbaf277ffaf95a248ad1443d.png)
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