已知函数
.
(1)当
时,求不等式
的解集;
(2)当
时,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354e9a2daff06ff8974a1f7f53018e17.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58427d5aa7deeca47c8789241913f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c67ddd60c47e91783929c8bdf8ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2022-01-03 11:16:32
|
相似题推荐
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】设函数
.
(1)解不等式
;
(2)记
的最大值为
,若实数
、
、
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ad0ca29cbf281844173eb816e24ed2.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375ea8bd23fac745ec45c899b487c628.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](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/989680e6b74504b71f5ece8771c5301d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a74e9b84661e850aa8cf7fd3c8c5db.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】设函数
.
(1)求证:当
时,不等式
成立.
(2)关于
的不等式
在
上恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea74a7d7d705b42221028d927ad6641.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f205efec333bcad668263c3a5353894.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1312d640aa773779a34e9d50791ef5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d791870fe5389d26d3ab97fced18ca7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
(1)当
时,求不等式
的解集;
(2)已知不等式
的解集为
,
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d791870fe5389d26d3ab97fced18ca7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a583468843ae5b55ab430d69bc1d4a11.png)
(2)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90f1afa74e3c3cb3caac88846a6c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb6611a979e93a6d2ddfd3414987cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18bf676b743728833d21db05f7d55a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ef83018ac259750bcb418c89f26160.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2】设实数
,
,
满足
.
(1)证明:
;
(2)若
对任意的实数
,
,
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417151855366601ab4e14a8ea6f7fb84.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c417119de41eda0a3463da1c78e5ccf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6518bedbd9d249bdf6e1cd1c7baf9b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次