名校
解题方法
1 . 设函数
已知
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a430425e383f6de01453211a09db938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951836ef5e4cfd3689a94810e0f8d43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67afd34495f2c2c3fe2deec14e1b4b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c21734265a5c61ed1d4d8c00b0464e.png)
A.1 | B.0 | C.2 | D.![]() |
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名校
解题方法
2 . 函数
的定义域是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0513aafc91ffd421ec137ecc82414d4b.png)
您最近一年使用:0次
3 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c537a6b8010f5a1feb95af4141689907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af3aaf21608582b93d72d2ed34f507b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 设
,函数
给出下列四个结论:
①
在区间
上单调递减;
②当
存在最大值时,
;
③存在
,
,使得
;
④若存在两个不同的x,使得
,则a的取值范围是
.
其中所有正确结论的序号是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb38c2e2a9484bf5956a2c644a316de.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a7642c9278c33a62f1ed6a7cc468fb.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/652ed11413a1e1739b5bb36cc457f4b8.png)
③存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f4fcf665e3643097575321d14a7c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a5aac861859447bfa43657536d7780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772de42a00014bda198747189a87ec98.png)
④若存在两个不同的x,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75218f92d6013def9add8e470c2fb2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04576c20aeb31bb60b412a7cc4f80471.png)
其中所有正确结论的序号是
您最近一年使用:0次
解题方法
5 . 函数
的定义域为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35f72c95aecb3bbe95705346f551387.png)
您最近一年使用:0次
解题方法
6 . 已知下列五个函数
,从中选出两个函数分别记为
和
,若
的图象如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0908ff4409d87277ab3b8583837bd1e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae6be1c40cb864c38df5dcebf5f2035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870a586e90a7bb79dc44f9451dee19ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0908ff4409d87277ab3b8583837bd1e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/5f92437d-7854-4769-a256-899f9ed1c297.png?resizew=116)
您最近一年使用:0次
2024-03-07更新
|
163次组卷
|
3卷引用:北京市朝阳区2022-2023学年高一上学期数学期末试题
7 . 设
,函数
,当
时,
的值域是______ ;若
恰有一个零点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f306d2b261f4c39a9fc0858d96e647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93955c5a47d255c0990f336a5fc2779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239ea0e903fbb4c8ce04133b9969578c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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8 . 设函数
(
且
).给出下列四个结论:
①当
时,方程
有唯一解;
②当
时,方程
有三个解;
③对任意实数a(
且
),
的值域为
;
④存在实数a,使得
在区间
上单调递增;
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf1a29518ba7fb41a351ae69ce43c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e436ea3ddcd13e69171135f0ff8e934a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
③对任意实数a(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
④存在实数a,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
解题方法
9 . 已知函数
,若存在非零实数
,使得
成立,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554f046181dee9f4c4a38a21a25ff63f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744b07c137166e10db0b54001cb93a28.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-10更新
|
516次组卷
|
4卷引用:北京市海淀区2023-2024学年高一上学期期末考试数学试题
10 . 某旅行社不定期组成旅游团去风景区旅游,若旅游团人数在30或30以下(不低于20),则收取费用180元/人;若旅游团人数大于30,则给予如下优惠:每多1人,费用每人减少3元,直到达到满额50人为止(大客车限乘51人,含司机).旅行社每次需支出成本费用3000元.
(1)若旅游团人数为40,求每人应交的费用;
(2)设旅游团人数为x时每人应交的费用为y元,求出y与x之间的关系式;
(3)求旅游团人数x为多少时,旅行社可获得的利润L最大.
(1)若旅游团人数为40,求每人应交的费用;
(2)设旅游团人数为x时每人应交的费用为y元,求出y与x之间的关系式;
(3)求旅游团人数x为多少时,旅行社可获得的利润L最大.
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