名校
1 . 函数
的值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b815afaed66f031dddcc0373fd72943.png)
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10-11高一下·湖北宜昌·期中
2 . 若数列
的前
项和
,则数列
中数值最小的项是第项______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f9354e4a0e70f49baa84ff774b56cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0496f142d8ae5acb06e83526eaa3ef87.png)
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3 . 已知函数
定义域为
且为奇函数.当
时,
,则
在
上的值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/898b76a963e84403bcdeb9d7008964ae.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/75e67e5e8b5d4ab8a27d23bcc53c9fd2.png?resizew=67)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/d67d5dc9d2fb4e39a64252e66194dbd8.png?resizew=105)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/33a2c3fef3ee4a6084773f8591f8ab97.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2015/12/7/1572345288769536/1572345294692352/STEM/898b76a963e84403bcdeb9d7008964ae.png?resizew=63)
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4 . 对于定义域为D的函数
,满足存在区间[
]
,使
在[
]上的值域为[
],求实数
的取值范围__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7ae3c4665cdb9f269d155a6199bdc9.png)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/407b788335074c00b2a7612efc572b31.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/233906b42f334954a13cecd0d1c06612.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/2c32188c1c14490baa82c433a8f79bff.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/407b788335074c00b2a7612efc572b31.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/407b788335074c00b2a7612efc572b31.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572825628467200/1572825634652160/STEM/44378376ad974ead8374a46b19946449.png?resizew=13)
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2020高三·全国·专题练习
5 . 一个工厂生产一种产品的总成本y(单位:万元)与产量x(单位:台)之间的函数关系是y=0.1x2+10x+300(0<x≤240,x∈N),若每台产品的售价为25万元,生产的产品全部卖出,则该工厂获得最大利润(利润=销售收入-产品成本)时的产量是________ 台.
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6 . 函数
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a862035454db18e12aa9eeb9f2cf786.png)
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7 . 设函数
的定义域为
,若存在非零实数
使得对于![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/f26e47fcb9d045aca1f5c0d54b79116f.png?resizew=103)
且
,则称
为
上的
高调函数.如果定义域为
的函数
为
上的
高调函数,那么实数
的取值范围是___________ .
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/0d4e84c5872b49f786f5312f061c324b.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/cfdc536abd064af7a590c016c1d61112.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/8e80ddb43bb94151a1968d8adda29aba.png?resizew=9)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/f26e47fcb9d045aca1f5c0d54b79116f.png?resizew=103)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/f574eb9f0c9a43cb8b2b2ce9af3e5e0d.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/bf5e8a57f3744404ab4d90a14561aa49.png?resizew=101)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/0d4e84c5872b49f786f5312f061c324b.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/42846bf77b514d7abc2a30de7944aa42.png?resizew=21)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/8e80ddb43bb94151a1968d8adda29aba.png?resizew=9)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/b1717c9ca61f4f7c9b0b3b54d03f6fd4.png?resizew=55)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/d37dac9327de4b6f9a9b583b8ef1bded.png?resizew=65)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/b1717c9ca61f4f7c9b0b3b54d03f6fd4.png?resizew=55)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/63dc2e102e2046648046f327078a0827.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/2/26/1572500039000064/1572500045037568/STEM/63dc2e102e2046648046f327078a0827.png?resizew=17)
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解题方法
8 . 设
,则函数
的值域为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966d9dd819cba29980da3700422c2497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b82cd2d301f46d5a7b43dd09180a4a8.png)
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11-12高三·甘肃天水·阶段练习
解题方法
9 . 设函数
,给出以下四个命题:①当c=0时,有
②当b=0,c>0时,方程
③函数
的图象关于点(0,c)对称 ④当x>0时;函数
,
.其中正确的命题的序号是_________ .
![](https://img.xkw.com/dksih/QBM/2012/12/27/1571083785519104/1571083790974976/STEM/ffc174d8344247daac445b3ab4ad1453.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2012/12/27/1571083785519104/1571083790974976/STEM/9a552dbc03bc4480a8dbfc8c60d679cf.png?resizew=139)
![](https://img.xkw.com/dksih/QBM/2012/12/27/1571083785519104/1571083790974976/STEM/b3de5b98945c4b63ae5a7985fb0c7598.png?resizew=183)
![](https://img.xkw.com/dksih/QBM/2012/12/27/1571083785519104/1571083790974976/STEM/284cd7cf359a4f32867089e2d4b9f5c2.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2012/12/27/1571083785519104/1571083790974976/STEM/ffc174d8344247daac445b3ab4ad1453.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d599760e741d7a00b4fd6f74c2b5d7.png)
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解题方法
10 . 定义在
上的函数
,若存在区间
,使函数
在
上的值域恰为
,则称函数
是
型函数.给出下列说法:①函数
不可能是
型函数;②若函数
(
)是1型函数,则
的最大值为
;③若函数
是3型函数,则
,
;④设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7089f485f3aeb24361811e5536740b2.png)
是
型函数,则
的最小值为
.其中正确的说法为________________ .(填入所有正确说法的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5313c921defe84689aefde4773ad2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aab24d046dd52838bff5d9bbd98305c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c60b2526f6219d0a6cb9c1acc9b7939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0caa3a615699327816753132a064e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3351f77162c004c9c21ac24c42e0413e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7089f485f3aeb24361811e5536740b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d846af1bdadcb3897971d0b2f767e1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
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