1 . 某种化学物质的衰变满足指数函数模型,每周该化学物质衰减
,则经过
周后,该化学物质的存量低于该化学物质的
,则
的最小值为( )(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee628efd6b2f7296c106dd5cbae42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b58ebe6148d43fb701a23e039438c54.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 地震释放的能量E与地震震级M之间的关系式为
,2022年9月18日我国台湾地区发生的6.9级地震释放的能量为
,2023年1月28日伊朗西北发生的5.9级地震释放的能量为
,2023年2月6日土耳其卡赫拉曼马拉什省发生的7.7级地震释放的能量为
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26f65d35f87df7c692c52f468b9c9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4dbe5d5c8b9c28c6f5eb92278a9f17.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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3 . 数学家欧拉研究调和级数得到了以下的结果:当
较大时,
(
,常数
).利用以上公式,可以估算
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17826979ae47a03c310d06f910b37b61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73c6b42f12d065a17923045f44d4ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452b6243108467a60790730e54e372ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba67dc055ccea04d7aa72565b04bbfb7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-06更新
|
134次组卷
|
3卷引用:浙江省临平萧山联考2023-2024学年高二上学期期末数学试题
4 . 如图,指数函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036710b9ce94be1dc185f4608efdadb1.png)
与直线
分别交于点A,B,C,若A,B,C的横坐标分别为
,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036710b9ce94be1dc185f4608efdadb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bc968aa51d4f8addb7e61b9fd73a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5a4e42606d7d5e8e7164b380b7fe27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128f8ee81d3c26d069c69719dd41bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65f7eb3681f8fb242c194ba16c0d3e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/7d9364ce-b604-4730-8a01-0ed4ed6f6db6.png?resizew=163)
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5 . 计算下列各式的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d66234d5f302f5f2dcbf50b4f57540.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d66234d5f302f5f2dcbf50b4f57540.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0468a5b8620530a7386f1531f3373867.png)
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6 . 计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433a6a46d385167cb84ea5e871f3326e.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433a6a46d385167cb84ea5e871f3326e.png)
您最近一年使用:0次
2024-03-03更新
|
373次组卷
|
2卷引用:安徽省蚌埠市2023-2024学年高一上学期期末学业水平监测数学试题
7 . 计算下列各式的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cac6d10a1ef54324a0f86fcb819e9e3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486c422e338d1596729fd4ac553a350a.png)
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8 .
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dccdaca63cad8b31e2512842b3526d3.png)
A.2 | B.1 | C.![]() | D.0 |
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9 . 化简求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175925ff8de139467847bf3b4cba76b9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b794771c2a5e4f140965a6405f28d0ac.png)
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10 . 已知
.
(1)分别求
和
;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f131287915d7464ee44620221ff091b.png)
(1)分别求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ffbece8eaa48d6f874ad33257a0da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871c01f016b80a7af493e05c06bab4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次