1 . 已知函数
为奇函数,函数
.
(1)若
的最小正周期为
,求出
与
的值;
(2)若
在区间
上有且仅有4个最值点,求
的取值范围;
(3)在(1)的条件下,求
的最大值以及取得最大值时x的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b05b05df566411356e9bc5d816a2ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b33fa72b617129146496e19ca2e8a7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0e5e86ec0be2bb2f60965f763cc548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(3)在(1)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
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2 . 已知函数
,若
,
,使得
,则正数
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01878bc2e0ee2118e123872b6b698ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86363d44047e7a13439be95c5ada424f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eed99256bc57073a5f065b9e642ecb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d96012d4b0dc17a1f09cfeaccc5097d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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3 . 对于函数:①
,②
,③
,④
.判断如下两个命题的真假:
命题甲:
在区间
上是增函数;
命题乙:
在区间
上恰有两个零点
,
,且
.
能使命题甲、乙均为真的函数的序号是______ .(请写出所有满足条件的函数序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d165498f824d9ae957980e99469ac0a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cd9a40dd7a7e8212c529a0c998c3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23d66780a08cd6048f8bbd30b5d228a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290d887eb4ec68c1c61077f70478bd12.png)
命题甲:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
命题乙:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.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/b725fdc8de9800f2692f6fea8585b1e9.png)
能使命题甲、乙均为真的函数的序号是
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解题方法
4 . 若函数
在
上单调递减,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56233f4729907742085fd9ace87d2017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc11d9bc2938ad1100ac357813cac87c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知函数
的部分图像如图所示.
的最小正周期为______ .
(2)将函数
的图象向右平移
个单位长度,得到函数
的图象.若函数
为偶函数,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6a1a187bee0ac1a1a7849bfd06b17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebd1d359040a1172a944ded96ed0127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-05-09更新
|
233次组卷
|
2卷引用:北京市中关村中学2023-2024学年高二下学期期中调研数学试题
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6 . 若直线
经过点
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96d06d25c0ad378899d07b847c80256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8508bedaf1d991f2aec84b1868de539.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 给出以下三个条件:
①直线
,
是
图象的任意两条对称轴,且
的最小值为
,
②
,
③对任意的
,
;
请从这三个条件中任选一个将下面的题目补充完整,并求解.
已知函数
,
,______.
(1)求
的表达式;
(2)将函数
的图象向右平移
个单位后,再将得到的图象上各点的横坐标伸长为原来的
倍,纵坐标不变,得到函数
的图象,求
的单调递增区间以及在区间
上的值域.
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24acaad3e4a83c102702155e5df281e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d998db584559996d1a463562ebfc83cd.png)
③对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b186f5b59118edded81fefe9d878a7.png)
请从这三个条件中任选一个将下面的题目补充完整,并求解.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599e2770c9a9d6d891fd156f0a4f9485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e4ac856b7ac1c163cced5db3f2b219.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e24f048f9a87274863ba2c037d7a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42017367e7f9fc70f99d70551852d6e6.png)
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8 . 已知函数
.
(1)求
的最小正周期;
(2)求
在区间
上的最大值及相应
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816b60d5034f6899b30aeab1e51ecdfe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3207791fb9b718adbcf16907fbc9cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
9 . 将
的图象上的所有点的纵坐标不变,横坐标缩小到原来的一半,然后再将所得图象沿
轴负方向平移
个单位长度,则所得图象的解析式为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c65d71e57e6e7697e2f627dcd58583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
满足
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd98c52f733bec5f39d63e93fd397fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354ccef647a628ffb09526136ecf90cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
A.3 | B.![]() | C.0 | D.![]() |
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