已知函数
.
(1)求函数
的定义域和值域;
(2)判断函数
的奇偶性;
(3)判断函数
的周期性,若是周期函数,求其周期.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5355509457bf448421971b80063d8939.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
更新时间:2020-12-26 16:51:12
|
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解答题-问答题
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适中
(0.65)
【推荐1】已知定义域为
的函数
.
(1)判断并证明函数
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(2)判断函数
的单调性,并用定义证明;
(3)解不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362bfce584209628bc4ad3f23e3d7b11.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029cf9c134e66861ad9cae8a6d3c5271.png)
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适中
(0.65)
【推荐2】已知点
直线AM,BM相交于点M,且它们的斜率之和为2.
(1)设
且
,求
的表达式,并写出函数
的定义域;
(2)判断函数
的奇偶性?并给出证明;
(3)试用函数单调性的定义证明:
在定义域上不是增函数,但在(0,1)∪(1,+
)上为增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1239e79754dd6400a642cdbab1fc81b5.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)试用函数单调性的定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/2020/1/13/2376026011287552/2377055747956736/STEM/824c207f8e544b0f9d726a4c1a237baf.png?resizew=10)
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适中
(0.65)
【推荐3】判断函数
的奇偶性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8884f629deccb6f8edfae5e2e4752a73.png)
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解答题-问答题
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适中
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解题方法
【推荐1】函数
.
(1)当
时,求函数
的定义域;
(2)是否存在实数
,使函数
在
递减,并且最大值为1,若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a71c0170431ce3885382a49f5a611f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
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名校
【推荐2】已知函数
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(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218c5309e534904dc6bf768074965239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
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【推荐1】已知函数
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(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594cd4740873780cc034c83eff4c69a9.png)
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(2)已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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解答题-证明题
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适中
(0.65)
【推荐2】已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/b62f11af-ceb1-4b96-8b7f-897c86c71f7b.png?resizew=162)
(1)请写出(不必证明)函数
的定义域、奇偶性、单调性、值域,并画出图象;
(2)设任意的
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/b62f11af-ceb1-4b96-8b7f-897c86c71f7b.png?resizew=162)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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