名校
解题方法
1 . 已知
,
.
(1)若
的图象关于直线
对称,求实数
的值;
(2)在
中,已知
,
,
的面积为
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1cf8cc0ca8fbbc8863fb416e25730f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642e5565b3016cdaba6f48f6bb81eb9e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad8f88b5771c2be918308b45d3d41a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feed53a8c562448cdf8ab1534cc4c8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2750de8276bcbd511bcdb92997184c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85c6ae0a0157f0cf0a31c79899caf37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
2 . 已知函数
其中
为实数,若
对
恒成立,且
,则
的单调递减区间是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b6552ef21544b1fe3eae6306912a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9483ff7c3cadf0c58ad6d3a2d13e401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a827460e50cc723a1e1fec71a8a0f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
您最近一年使用:0次
3 . 已知函数
的一条对称轴为
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/652e5cef57120a32cddc8dd0799bbbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
您最近一年使用:0次