(1)求不等式
的解集;
(2)如果关于
的不等式
的解集为
,求实数
的取值范围;
(3)已知关于
的方程
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc2b942de52ad446feddb25923816d.png)
(2)如果关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd76fc3118258f046b93db0032bb186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d97dcecc2273efc2095702b64ac2940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-10-16 21:41:00
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名校
解题方法
【推荐1】已知函数
.
(1)求不等式
的解集
;
(2)若
有解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c5670d52c80493089f86da7b0a7e5f.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d24227741bf427e6bd73490baf3c3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9644ffcb53770c950e6e9720c7dbca4.png)
您最近一年使用:0次
解答题
|
较易
(0.85)
名校
【推荐2】已知函数
,
.
(Ⅰ)若
的最小值为1,求实数
的值;
(Ⅱ)若关于
的不等式
的解集包含
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbe9d1329e1dfe2d2818b0a73cb3212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b2655a1ec29d43a88610060e6c2977.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4aef678dab46159651148372e7cbe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3f2b95e18fbd1218667e35f26b7f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e254a7d08060fb2655d5b07df06e7d.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
|
较易
(0.85)
【推荐1】[选修4—5:不等式选讲]已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e71372c0894768a5982a74aca71486.png)
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)若f(x)的图像与x轴围成的三角形面积大于6,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e71372c0894768a5982a74aca71486.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(Ⅱ)若f(x)的图像与x轴围成的三角形面积大于6,求a的取值范围.
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知函数
,其中
.
(1)当
时,求
的最小值;
(2)若
的最小值为4,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7654983cf24cd00658a4ed6c5be8f11e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次