名校
1 . 对于函数
.现有下列结论:①任取
,
,都有
;②函数
有3个零点;③函数
在
上单调递增;④若关于
的方程
有且只有两个不同的实根
,
,则
.其中正确结论的序号为______ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b488ea4070e2c7f27a5a3fcb7c7c8138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c50d84d051a6e770d1eeefcdcd58b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a8c69aaecfbe4d8bd7cf01a3b79c50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2419b1e277ee683ac59e59289109bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd2993f6583edb4693a760f3f276a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b647bef81d6e219c508eca1517d9342.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/ecc2660c57e0cb6f907f49ae35677113.png)
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2020-06-16更新
|
1468次组卷
|
6卷引用:黑龙江省哈尔滨三中2017-2018学年高三上学期期中考试文科数学试题
2 . 用
表示函数
在闭区间
上的最大值,若正数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37b9ee93982aa293a2cb1dd2079cc72.png)
________ ;
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1377e4eba3864dab59461147d68da32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ae7aa33bb308342ccf22bf61ad9ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37b9ee93982aa293a2cb1dd2079cc72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-05-25更新
|
762次组卷
|
3卷引用:2020届福建省厦门市高三质量检查(5月二模)数学(理)试题
3 . 已知函数
在
上有且仅有3个零点,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7081c09e70860b16e0f91d8caa840bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24192cace1d2a643fc3a42a5b7ac273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
4 . 已知函数
在区间[a,b](a,b∈R,且a<b)上至少含有8个零点,在所有满足条件的[a,b]中,b﹣a的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee82e71216ef5f1c0a14d0e6990b3afa.png)
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名校
5 . 已知函数
,在同一个周期内,当
时,
取得最大值
:当
时,
取得最小值
,若
时,函数
有两个零点,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb99c6441405726bd58734360911eaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720091d877ca5e2837b0f410fb99631d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b283eb08db6f602ede1ae542c5e3662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c247f2c800689d4480b839c4f25667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a54a7061cdfaa63191608617cd7a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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