设函数
,
.
(1)当
时,解不等式
;
(2)若关于
的不等式
的解集为
,且两正数
和
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741de7c562b373daadefa2b2951c4d65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0175c6e23e7f059a43a1c60f19470fa7.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc42c1dcd2d8574feaacb9ac2829c078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804b42a96bb518a1c7227888f32b1126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a7ca80cf04b6b4a92d863f97d1a9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c6e884a332a3e34deafaf987506cf7.png)
更新时间:2017-05-04 21:08:11
|
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
均为正数.
(1)若
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6844be01f0ef131a15048a8d5c8304.png)
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c9d779894f90718fff0ae90a6cb82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6844be01f0ef131a15048a8d5c8304.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1160a677db4546ecb55ce906100024d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08101a063e74106deeec4e2f42e571a3.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
.
(1)求不等式
的解集;
(2)已知函数
的最小值为t,正实数a,b,c满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7118721b45bdc672c009c64140e103e0.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e243488fa126c4d9d7bfd0e64e5e2259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67481147abf4b4b992c5ec160c955d0c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】设函数
.
(1)求不等式
的解集;
(2)若
时,有
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50e909ad4a19b25b7e2880c0e9858c4.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2677d8cb044df55cbca3c905c286a952.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62dae231e607d39815d7818887f94202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0946479c941fbedaec12db71df4db991.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知函数
.
(1)求不等式
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(2)若正数
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,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a346172166bafb035aa1a577398b10.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)若正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b65af0dc203b3530146ebb4f691ac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5d0066d4327a075dfc4e1fa10b86a3.png)
您最近一年使用:0次