已知
是二次函数,
且
.
(1)求函数
的解析式;
(2)当
时,函数
的最值;
(3)令
.若函数
在区间
上不是单调函数,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a58bb9d533e15f0081073ed23a679c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93774db57b7b9c580ab73062884bef9b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c78f63459505c64effea0d071eae2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa8dc999d5a7ea8cc65116fdc19a1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
更新时间:2022-11-14 21:52:53
|
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】已知二次函数
对任意实数x,都有
,且当x∈[1,3)时,有
成立.
(1)证明:f(2)=2;
(2)若f(−2)=0,求
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(3)在题(2)的条件下设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3072b97814d272264a596ebb075c50e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604636b71bc8c9658b87854c3119062a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04babe03858381f34bd16a3d2f96993a.png)
(1)证明:f(2)=2;
(2)若f(−2)=0,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(3)在题(2)的条件下设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/732efb07980bebc63ab75b35d64da01b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
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【推荐2】设二次函数
在区间
上的最大值、最小值分别是M,m,集合
.
(1)若
且
,求M和m的值;
(2)若
,且
,记
,求
的表达式并求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a35277c37144276ead40bb74a51481.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7d68de2f0390643db1c2a97e2c5b6c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a1e9dd14cbd2271ba2f472664ad57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17ee5f43412795671704ab0e8d0b2f5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521a508e725600221f5e095adb01ef65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571a69f847a1376286a902c2eaa45e3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50534b1990c8cfc83aef691fe782c2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdaff297141813399af6f71b8803e7c.png)
(1)若函数
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(2)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdaff297141813399af6f71b8803e7c.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
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解答题-问答题
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解题方法
【推荐2】某市地铁项目正在如火如荼地进行中,全部通车后将给市民带来很大的便利.已知地铁7号线通车后,列车的发车时间间隔
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满足
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元
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1fa34438b5f4ab8a2d5bfa405984be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52f05b15e6994dd860b1959dc9da428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c987ded553c090c1e2fcd28b71b5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c3594dc13f31613afc11cf7f00ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2501728bf9ee75fd97aea5d8c438517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c82d9680ffa216f0d34293342499eb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c82d9680ffa216f0d34293342499eb.png)
(2)若该线路每分钟的净收益为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd3472006e0b7c60eecf5de39f30594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
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【推荐1】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c44d61210c51184f883760fdc249a8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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解题方法
【推荐2】已知函数
在区间
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c8cf001b36ec9a53afa9fbde9c3e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次