名校
解题方法
1 . 已知不等式
,对
恒成立,则a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2dc8dfccd4b2bd01b79c312f0582a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d794c3af7140c07ef04547cdd0be19.png)
您最近一年使用:0次
解题方法
2 . 已知
,
(
为常数),
的最大值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc3a4aa128b5c656a2ef95ea40cda4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3857d8cc6bddaf8a76c283e3e6d7df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1545a79383c92ae2bb63b33519fbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d2c86663c534b729d62a78b3ded9ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次