解题方法
1 . 已知函数
,周期
,且在
处取得最大值,则使得不等式
恒成立的实数
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d067b958cfe4c567a757f94de52086cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0bbf4c3008264b0f565cc3e563cf2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dc06a95745d3aac567fe890df35eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知
在
上恰有两个零点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6867e7bb260f419b0ed71d8b25c7f143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dd703f20cea76efd06457cefbd9722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 若函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273f20827865748cd3a334158cb4bd59.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 已知函数
的部分图象如图所示,则下列关于函数
的说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/7/20/2510137261457408/2511225565773824/STEM/41a99a5df9a34166b9361bacf91266ed.png?resizew=135)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba536449058752998d3be2867cdcbed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2020/7/20/2510137261457408/2511225565773824/STEM/41a99a5df9a34166b9361bacf91266ed.png?resizew=135)
A.图象关于点![]() | B.最小正周期为![]() |
C.![]() | D.图象关于直线![]() |
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2020-07-30更新
|
880次组卷
|
3卷引用:湖北省孝感市应城一中合教中心2020-2021学年高一上学期期末数学试题
湖北省孝感市应城一中合教中心2020-2021学年高一上学期期末数学试题山东省德州市夏津第一中学2019-2020学年下学期高一7月月考数学试卷(已下线)2021年全国高考乙卷数学(理)试题变式题11-15题
5 . 已知定义在正整数集上的函数
和
,则当
,
时,
图象在
图象上方的点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1308d696fc52adb30eb3538d1a0ef29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2463c7d9191a4c4a466f6ba45217e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038d4728f959a8efedc2592e4a4b5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e580d2322f7ee146f152ae1f5d0aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
A.505 | B.504 | C.1010 | D.1009 |
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2020-07-07更新
|
134次组卷
|
2卷引用:湖北省七市州教科研协作体2020届高三下学期5月联合考试数学(理)试题
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f864c936908d12d989dc64fe55ae151d.png)
,其图象与直线
相邻两个交点的距离为
,若
对
恒成立,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f864c936908d12d989dc64fe55ae151d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5826faecaab3b491ebc77aa5e6c32a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157bbd11744af87bc95e463c1ea14238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 已知函数
,对任意
,
的最大值为4,若
在
上恰有两个极值点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3a6b094c95c9599e8587fd128e947a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d200a7afe1e011713e14886a6887e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc8f775c0c874c4ea920136a91db8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-05-27更新
|
221次组卷
|
2卷引用:2020届湖北省七市(州)教科研协作体高三下学期5月联合考试文科数学试题
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8 . 两个图象不重合的函数
与
有相同的对称轴,将
的图象向左平移
后,得到函数
,则
在区间
上的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a067e86ae162185a04bdf862b40cd255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734047ac963ec067fb19fb91f4badb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35973a12c3c1a17a2f278aaf75fe4c2c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f3263c9249894d4bbb360f95f0a774.png)
的最小正周期为
,若
在
时所求函数值中没有最小值,则实数
的范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f3263c9249894d4bbb360f95f0a774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ddbb5cfaedab59c97125105c3fe590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf5b911f7a33f98d69ec6255660909f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-10-25更新
|
707次组卷
|
3卷引用:湖北省“荆、荆、襄、宜四地七校考试联盟”2019年高三上学期10月月考数学(文)试题
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10 . 已知函数
的最大值为2,且满足
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c1af62a141a5c18cde2f9f0e434042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8363098d99a53679502ff7e99250b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037ecd3932d32f47113b99f8827b9d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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2019-03-03更新
|
420次组卷
|
4卷引用:湖北省武汉市2018届高中毕业生二月调研测试理科数学试题