名校
1 . 已知函数
在区间
上只有一个零点和两个最大值点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2f16911db3210ad2c3a50768387d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f897eed68eaf69608ffa4cf9de94a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
名校
2 . 函数
的零点是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5501e078f146462d4a7d42f10a0e10c5.png)
您最近一年使用:0次
3 . 已知函数
,方程
有五个不等实根
,则实数
的取值范围是______ ;令
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f9aa22f9aef763a84475f2bdb77545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e3397839f4b65912c2f0cfe7f05eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf3677cb4c0794fa59329ac1c1d7254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2431a242e00f4235d0f3dcaa7f52e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
4 . 若函数
有两个零点,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aae864b79561a9e88e01b8fb9d58cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解题方法
5 . 已知函数
,满足:
恒成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46626b75bd7bc420bf32b66e3253b40b.png)
__________ ,函数
在区间
内有__________ 个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05c526e0fa965b4e5b981b5e77e15a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f1f7a4dff2b6eaef8b5208bbb78fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46626b75bd7bc420bf32b66e3253b40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4dfa38f0872e435fe7203d5aa1a100.png)
您最近一年使用:0次
6 . 已知函数
,若方程
有两个不同的实根,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5f90314e96ba22f332ee527f9c3223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d3d7b48ea2c4a0c74ebfb263c4eeb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
7 . 已知曲线
和
,若C与
恰有一个公共点,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ ;若C与
恰有两个公共点,则实数m的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f6c929fadaa3e9f1322db258354e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01d16dce9359541fa73503af853473a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
8 . 中国茶文化源远流长,博大精深,茶水的口感与茶叶的类型和水的温度有关,某种绿茶用
的水泡制,再等到茶水温度降至
时饮用,可以产生最佳口感.为了控制水温,某研究小组联想到牛顿提出的物体在常温下的温度变化冷却规律:设物体的初始温度是
,经过
后的温度是T,则
,其中
表示环境温度,h为常数.该研究小组经过测量得到,刚泡好的绿茶水温度是
,放在
的室温中,
以后茶水的温度是
,在上述条件下,大约需要再放置__________
能达到最佳饮用口感.(结果精确到0.1,参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13708f01d71b3172e2508af0d620572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7158d8fec00479a56aa0333f550a92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ccd929471d564cc9d2d96266b34d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5481d5a5e5f293cb87ce8d5be068097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a3fec95b58468366bd7f9d965b3db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232519a6b38ae0975ef2e2f8f6f34488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13708f01d71b3172e2508af0d620572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ccac4181d8a1fe89f03c89ca7c42fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af12320a8be4ea1051ab6c94cdb93b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6bef2cb190a95c42e08f15db588320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e008ee8b0dc593ce21d8d4c87afef1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12a76edbb3e98e3ff41c03401769d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50101047632b94dcd5cf8035b093cc5.png)
您最近一年使用:0次
2024-03-08更新
|
112次组卷
|
2卷引用:安徽省A10联盟2023-2024学年高一下学期开学考试数学试卷
解题方法
9 . 已知
,符号
表示不大于
的最大整数,比如
,
,若函数
有且仅有
个零点,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d7189967506fe4dbc21eef2b046536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fa1e24c14927192d2a2286b012b958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbe581dff0deafced8f35d58e21424a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
10 . 已知函数
有且仅有3个零点,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f3f5f5f7c8e951b18de2fc068e6b4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次