解题方法
1 . 已知函数![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/5bf0815f21fc43c38493f9d1f158638a.png)
.
(Ⅰ)关于x的不等式
的解集为
,且
,求a的取值范围;
(Ⅱ)是否存在实数
,使得当
时,
成立.若存在给出证明,若不存在说明理由.
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/5bf0815f21fc43c38493f9d1f158638a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/f39445e99834499eb6a37105a76a1c97.png)
(Ⅰ)关于x的不等式
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/3402e372bea741da904b4866e1204bd9.png)
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/d9c14691af944974a915d8ef3e1d3ac8.png)
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/8bed9491535c405eb4f0d76084c9fabe.png)
(Ⅱ)是否存在实数
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/4e9b742c818e4f1bbf3c23d29ed870c0.png)
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/714b6dd65ef646e2bec0b2cd931f595a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/11/1579117025320960/1579117025894400/STEM/339857eab64a49b9992333d2559ac908.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
是定义在
上的奇函数,且
,若
时,有
.
(1)求证:
在
上为增函数;
(2)求不等式
的解集;
(3)若
对所有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67f7b127acdedafc2e9a61bb9483a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca3e05cadfe77556641fcfb130e717f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c3596a700e789f9f8366c5a618a85.png)
(3)若
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572615649533952/1572615655006208/STEM/c1ba12d9880240e1b1b56566ff478146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e62aebcf3cec0b67ca9e8b52fa7a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2016-12-04更新
|
622次组卷
|
2卷引用:2015-2016学年湖北省汉川市高一上学期期末考试数学试卷
11-12高二下·广东惠州·阶段练习
解题方法
3 . 已知函数
,且
.
(1)若
在
处取得极小值
,求函数
的单调区间;
(2)令
,若
的解集为
,且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d9b521e0122b9aeecd5fdcb1a7d6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3503b5dba726f35cdea45142bc88fd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0e3df7ec76a64c3144acddf855077e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74eb8a7738402df52d4a97262b85ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0e3df7ec76a64c3144acddf855077e.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9e922ee584a928acfcf19658ae519d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0149e9a0e4d5ac2c3e82a16f0ab06809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5849553d38ab59a74c94d3e9307d58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95358717841874f91bca7f938da6592.png)
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