名校
1 . 将关于x的方程
(t为实常数,
)在区间
上的解从小到大依次记为
,设数列
的前n项和为
,若
,则t的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e264282656baf7df224f7c995966f62b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d61f98f7418eda31a1d7c457e3841c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c032d50e3dde09f453adc34a1c5353ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3918ebdd05d8b61cae84e7015a055f.png)
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2 . 设函数
(
是常数,
,
).若
在区间
上具有单调性,且
,则下列有关
的命题正确的有___________ .(把所有正确的命题序号都写上)
①
的最小正周期为2;
②
在
上具有单调性;
③当
时,函数
取得最值;
④
为奇函数;
⑤
是
的图象一个对称中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e4892080a918aa2127c09e8d4c28c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7fa86dca0ab79dbfb476c8f1cf329e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c9e46448bc791c441ca02d8f4508eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b587e5f500e7fb3f4482cc8250255a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d250c768a96ae9772bb4d4d93b5da277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/758feba605bd0076a35125cba189844a.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fac9575a5985527e283f7295fdaf72c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5304653dd6e1d1699db9d4679d06a2d.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa773b810d4e1c3b131d8dfb1161ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55264dbb14a76f4bdacfbed96ff8010.png)
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3 . 写出一个同时具在下列性质①②③的函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
___________ .①
,②
在
上是单调递增函数;③
的图象关于点
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e06cf199b0f36c8038a2aabda46f33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1279ef84071f5ad7c4c1681357edd84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0082eaec44556e43a4a987c8e01e2.png)
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4 . 已知函数
,且对于任意
,都有
,其中所有真命题的序号有_______ .
①
在区间
上单调递增;
②
;
③ 若
,则
;
④ 若实数m使得方程
在
上恰有
,
,
三个实数根,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696c606b32f4f473acd0d0df35fa9605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f4e3896e6152732c7ffcadcb436b59.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ab6a7895e97359d3e30775eefa3365.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84c6af90757c4b069ce4a04c24e1f7f.png)
③ 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c249527c28327fb8bc13444824bbb0d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4aa5e994e40e2a644c46764d3fd6ff.png)
④ 若实数m使得方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bc0c34811edba74dae3fcaed8f577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1210474948a57600e1d549fb0fb1457a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18875101c5682fdb50976ae6d958bb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1750dfd622be19eeee2e6e1d6aeb78.png)
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