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1 . 古希腊毕达哥拉斯学派在公元前6世纪研究过正五边形和正十边形的作图,发现了黄金分割值约为0.618,这一数值也可以表示为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c84ed497677d4e7195822f648e5f711.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9401f409f465aaa9becaa1d86fa50986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c84ed497677d4e7195822f648e5f711.png)
您最近一年使用:0次
2023-06-18更新
|
287次组卷
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2卷引用:河北省石家庄部分重点高中2023届高三下学期3月月考数学试题
2 . 已知函数
(
为常数,
,
的部分图象如图所示,有下列结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/1204c4b6-582e-4710-b948-41feecfba5a5.png?resizew=156)
①函数
的最小正周期为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
②函数
在
上的值域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c33b69adc112831fa115b5dffdb616.png)
③函数
的一条对称轴是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aff669c7fa31eeb1896cad9ab7cfe8e.png)
④函数
的图象关于点
对称
⑤函数
在
上为减函数
其中正确的是______ .(填写所有正确结论的编号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec89c3bc454d209007c2b29baeeb3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b651c83ed280b34e1144bd7b22dd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/1204c4b6-582e-4710-b948-41feecfba5a5.png?resizew=156)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457df0f9d14437a7f0443bb297e6ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c33b69adc112831fa115b5dffdb616.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aff669c7fa31eeb1896cad9ab7cfe8e.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde004eb9c69dac48893b4fc4677f001.png)
⑤函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec2b153baae853850533aee2b5d8b3b.png)
其中正确的是
您最近一年使用:0次
3 . 已知函数
(
,
,
为常数,
,
)的部分图象如图所示,有下列结论:
①直线
是函数
的一条对称轴:
②函数
的图象关于点
对称:
③函数
的周期为
:
④函数
在
上为减函数:
⑤函数
的最大值为2.
其中正确的是________ .(填写所有正确结论的编号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec89c3bc454d209007c2b29baeeb3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aff669c7fa31eeb1896cad9ab7cfe8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0082eaec44556e43a4a987c8e01e2.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb14ba899bc3eab9a0eba645245496a.png)
⑤函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
其中正确的是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/d3459d1c-55ed-4443-a0a0-c6913cf0a084.png?resizew=139)
您最近一年使用:0次