题目
题型:解答题难度:简单来源:不详
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![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071044-96994.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071044-50934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071044-96994.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071044-96994.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071045-99943.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-80700.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-91316.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-11485.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-80363.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-53589.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-42720.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071045-99943.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071045-81832.gif)
即
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-21947.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071045-99943.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-91316.gif)
⑵由
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-46836.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-35861.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071049-60784.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071049-56864.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071049-56382.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071049-53978.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071048-46836.gif)
|
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071049-17427.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-13858.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-50972.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-58361.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-52918.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-31383.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071050-83111.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071051-45859.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071051-13215.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071047-11485.gif)
⑶当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071046-70865.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071051-83054.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071051-45839.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071046-43345.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071051-98855.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071052-53920.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071052-96016.gif)
故
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071052-42201.gif)
则数列
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071046-49467.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071052-70360.gif)
故
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071052-45484.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071053-23275.gif)
核心考点
试题【已知二次函数(R,0).(1)当0<<时,(R)的最大值为,求的最小值.(2)如果[0,1]时,总有||.试求的取值范围.(3)令,当时,的所有整数值的个数为,】;主要考察你对一次函数的图象和性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071037-55075.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819071018-16321.gif)
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(1)求证:两函数的图象交于不同的两点A、B;
(2)求线段AB在x轴上的射影A1B1的长的取值范围.
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