设函数
的导函数为
,若函数
的图象的顶点横坐标为
,且
.则
的值_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3518e61df71845b9fbaa5372b20c19e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a6ed197f4872abf3780cfcf48dda3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82df3d5b459179d67129e5317e7b302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5743a3bf50e8146f519a7b4f32a958b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061d13e78cb999b1186118b0df4fc71b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/704f858f73063183e5779257900e694d.png)
2019·陕西·高考模拟 查看更多[1]
(已下线)【省级联考】陕西省2019届高三第二次教学质量检测数学(文)试题
更新时间:2019-03-20 19:30:20
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填空题-单空题
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适中
(0.65)
解题方法
【推荐1】若函数
的图像与直线
交于两点
,
,其中
且
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d7ed6f4b0e08cd887d2fdc2a5e37e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf1583e74a8a4b9fd7c5748264a8a2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22b29d9f069d97544fa579e363f6683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b87097b2cf9cfc7ed13edc403d7e072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09f1001877a9b90148d68a8d683e97d.png)
您最近一年使用:0次
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适中
(0.65)
解题方法
【推荐2】已知二次函数
,对任意的
,恒有
成立,且
.设函数
.若函数
的零点都是函数
的零点,则
的最大零点为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4e4772f3a05ed57c29ce9ad8a0f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89064779866f8b32e1db952cc3b301c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974493e8afddd75c2ba8240aadd4c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
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适中
(0.65)
【推荐2】已知
,则曲线
在点
处的切线方程为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed494a059390cdf27aa5bb0039186ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c959ab293ef3ecbba70b635da3e2a8.png)
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