已知函数
.
(Ⅰ)当
时,画出函数
的一个大致的图像,并指出函数的单调递增区间;
(Ⅱ)若函数
在区间
内有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f726eb48c259e0688d32479ef6bd5c3a.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f9bf433c7af6dcccf6f3bd21095879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
12-13高一上·浙江台州·期末 查看更多[1]
(已下线)2011-2012学年浙江省台州市高一上学期期末考试数学试卷
更新时间:2016-12-01 14:37:50
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解答题-问答题
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适中
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【推荐1】已知函数
,
.
(1)若函数
在
内有唯一零点,求a的取值范围.
(2)设函数
的最大值、最小值分别为M,m,记
.设
,函数
,当
,
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5a8a2c5eb1378820b13b3ac89fa95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49200638dacabba433c89091a85a3a89.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47b28cc54ced61f5ab8d310dc76a982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6dd738ca111f49063b03cbb959a451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31a53fafc6c5d5e13ac3eab08f997b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a870bbc137db5ec904afd026c5681bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e212491cebea5ab07e1ee7f2b4e7d2fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd93b77cc67780afe79261829df669c.png)
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【推荐2】已知函数f(x)=
.
(1)若对任意x∈[2,4],不等式f2(x)+p·f(x)+1≥0恒成立,求实数p的取值范围;
(2)若函数F(x)=f(x-3)+
,是否存在实数m、n(m<n),使得F(x)在区间[m,n]上的值域为[m,n]?若存在,求出m、n的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457e696b1504bfb73140699a8e18dd0.png)
(1)若对任意x∈[2,4],不等式f2(x)+p·f(x)+1≥0恒成立,求实数p的取值范围;
(2)若函数F(x)=f(x-3)+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
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【推荐3】已知
,命题
:二次函数
在
内有且只有一个零点;命题
:对
,
恒成立.若
是真命题,
是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c18f31cf498187b1bde83cd1ea7d3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405741735c6bfbbbfcb52ae03069b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae6c28dafd05db00a9062c37d822a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285219e70f15d6eb9ffc70879775aa04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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解题方法
【推荐1】已知函数
满足
,且
在
上是严格增函数,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf203cb321e75bba5fffd245c87f509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3b657ebd1733b4f19dcbec44919924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c57515957bf1483d7d0ee11ebd33523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
【推荐2】已知函数
.
(1)解不等式
(2)画出函数f(x)的大致图像(不需要列表),并指出其单调区间;
(3)若直线
与
的图像无交点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c39deb9574f6be3552cc4366792d12d.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)画出函数f(x)的大致图像(不需要列表),并指出其单调区间;
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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