已知一次函数
的图象经过点
和
,
.
(1)求
的解析式;
(2)若
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db89c88c5b81cb80bf87fe66f289255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf80962030e6409c1cb721188a14f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedbb8e2b43f38668bbba32e726a6b72.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9069f7e2f892fad52fec990414ab64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-10-15 16:04:48
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解答题-问答题
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【推荐1】已知
是二次函数,
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(2)设
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(1)求
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(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0af6b64ace474360bda7c6728f94c7.png)
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解题方法
【推荐2】二次函数
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(2)若在区间
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恒成立,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e73001005c51065ad1315be7a4175d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6d128d8414ef81a49dba9954ebd1fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9bdc02ed3ecfbb9f65d02c850e3d38.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d43eb5d13c51115c0ca3087bb0b50a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e611cf1d419949f88c5d5aea506e27.png)
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【推荐1】若非零函数
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(2)求证:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db7387dec34f24cacb1cd95c433e8a4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
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【推荐2】(1)计算:
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(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a98ff540b9d0b04b56110b42a939b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d7e39db25ec0e567292ca11eed8246.png)
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【推荐1】已知函数y=
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2791bc81723422edb38ea2cb51845e5e.png)
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【推荐2】已知函数
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解题方法
【推荐3】已知函数
(
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是单调函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de122801dfb31da6b933c90f3b98087f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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