1 . 设二次函数
,方程
的两个根
满足
.
(1)当
时,证明:
;
(2)设函数
的图象关于直线
对称,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee0bd8a541d6c1057325f7f4287a64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce1d0d23531eba7c795b2f53a5b280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57cfda1c04b6eaeb5e78018539c2880e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654999361ddc18f7330b36a535c99c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf85fac81ccb29ad30c0aeb09620f42e.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0178cdfe12c03ce5b50378c71471035.png)
您最近一年使用:0次
2017-03-01更新
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1582次组卷
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5卷引用:1997年普通高等学校招生考试数学(理)试题(全国卷)