(1)解不等式
;
(2)设正数
满足
,求证:
,并给出等号成立条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58e83084ee6fee8757dcd9a315c31ca.png)
(2)设正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4d684b78f6e4a759f11bc25f7c9a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a58acd47ea35cf8099b04bdba73cb3.png)
更新时间:2019-11-05 15:53:32
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相似题推荐
解答题-问答题
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适中
(0.65)
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【推荐1】已知函数
.
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)若不等式
对任意实数
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b354477209eee88f7b0e175893c1bc11.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(Ⅱ)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
.
(1)当
时,解不等式
;
(2)记关于
的不等式
的解集为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4d18b26604f6f45e6eaf9124e5496a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc1cd2baabbf8afea25478e1258237.png)
(2)记关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6212f8e373828e5ae15ef5bd245e9dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d697aa8f97fd0ffeff46d70736ebb604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
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解题方法
【推荐1】已知函数
.
(1)求不等式
的解集;
(2)设
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770379803165ea8961850c963ef5c0d8.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7229b58a2313baa126a3d87b62114e09.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdab0bd0603043347f5a5fc19e19f2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f17b382e59a5e5e5d0bd6db76916b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed65d2b2273bec4d329b2e06858438b.png)
您最近一年使用:0次
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适中
(0.65)
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【推荐2】已知a,b,c都是正数,且
,证明:
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04cff6b86f9017dc00ee921f6f3f928.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b8cce7461f46b5a541a5e7177b50e2.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3878f789b0735b8cf8267847512a93f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05d3b8f5c9df891ef6fbcaf12f43207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04cff6b86f9017dc00ee921f6f3f928.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b8cce7461f46b5a541a5e7177b50e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2437b3ad045438f26da8359ac1425336.png)
您最近一年使用:0次