(1)求不等式
的解集;
(2)已知实数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30de9b2c2d76925e9a607de0f266f5aa.png)
(2)已知实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adbed5156707b25f6d27872320ef1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f29556367adb22a925a95f8aa84e801.png)
更新时间:2016-12-04 16:45:53
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解答题-问答题
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适中
(0.65)
名校
【推荐1】选修
:不等式选讲
已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d105b1900c5eb722cf0a4c7f54908c3e.png)
(Ⅰ)解不等式:
;
(Ⅱ)若对任意的
,都有
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c4ab4b9e8a2d3867554364713b999.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d240634fe48a2554f8aee18107fb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d105b1900c5eb722cf0a4c7f54908c3e.png)
(Ⅰ)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851cfb92016e70f33017288a13f0e854.png)
(Ⅱ)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec80634a6e2b2c85f845fa368b3a5969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.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
(0.65)
名校
【推荐2】选修4-5:不等式选讲
已知函数
.
(1)解不等式
;
(2)如果对于任意的实数
,不等式
恒成立,求实数
的最大值.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455a3afcedf68ee5f650df5483121c7b.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
(2)如果对于任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbb5c7dc44a26782265b87047d39fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
【推荐1】已知函数
,集合
.
(1)求集合
;
(2)若实数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2a98a65d77adaab10b547fdd00c7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a25aa8902a4b03e97679305a2560b58.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0f4e4421b63f3eede74bc81b35edee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6098896f200fd6c88ca8d6c6abd413c0.png)
您最近一年使用:0次