已知函数
.
(1)求函数
的单调区间;
(2)在区间
上,
是否存在最大值与最小值?若存在,求出最大值与最小值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5a90dad146686092eaf57ae44cdf01.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80fde0a10ce7edda3157e02bca232e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
更新时间:2021-03-22 16:29:15
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解答题-证明题
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较难
(0.4)
解题方法
【推荐1】已知函数
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(1)若
,讨论函数
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(2)若
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;
(3)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b3de8a032a7081161352b34ee7bc59.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933436a516df078f4c4250d698310c13.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a81a39630f05d9a470c1f4b3c5e524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
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解答题-证明题
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较难
(0.4)
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【推荐2】已知函数
.
(1)讨论函数
的单调性;
(2)若
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c502d5973ddc08ff529995a51edc29e.png)
(1)讨论函数
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(2)若
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解答题-问答题
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【推荐1】已知函数
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:对于任意正整数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a958073a552a7a724439051655cec455.png)
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【推荐2】已知函数
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(1)若函数
为函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67927f8723eee0eb4cdd86d3a4828281.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
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【推荐3】已知函数
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(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5944b9057143318843c2b3e455760fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb23272635181bb51db5a6a1917d73aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca91c3c8d78332732f6b1c41d92cd867.png)
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