名校
1 . 这是今年双十一的两道题目,第一题是双十一之前网上流传甚广的小明买卫衣问题,第二题是有关某老师的双十一战果.
(1)小明想在双十一买价值399的卫衣,已知付定金20元有订金三倍膨胀活动,但仅限当天0到2点,2点以后订金可抵用50元,但有付尾款前500名免定金活动,同时该店铺有399减20和299减10的优惠券(其使用门槛是订金
尾款
订金膨胀优惠金额大于等于优惠券),还有一种379减20和279减10的折扣券(其使用门槛是尾款
膨胀优惠金额大于等于折扣券面额),优惠和折扣只能选一种,求小明最低多少钱能买到这件卫衣?如果你是小明,你会选择怎样购买?
(2)某老师在双十一前花1元,抢到了某商家满
的一张优惠券,该商家没有订金膨胀活动,但该商家有多买多优惠活动:满3件9折,5件8折,10件及以上7折,同时可用淘宝
的购物津贴(可跨店满减,店铺优惠后参加该活动,但运费不在其中),现已知该老师本单共花了
元(1是买券钱,119.78是双十一付款,其中含运费6元).
请问:该老师本次购买的商品价值最低多少?最高多少?(按商家标示的淘宝价格计算,精确到元即可,已知该老师用了
券)
(1)小明想在双十一买价值399的卫衣,已知付定金20元有订金三倍膨胀活动,但仅限当天0到2点,2点以后订金可抵用50元,但有付尾款前500名免定金活动,同时该店铺有399减20和299减10的优惠券(其使用门槛是订金
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
(2)某老师在双十一前花1元,抢到了某商家满
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93528f45405fd17d905ef4f75165d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4e7f3c2a0da019ff8e84bc412872e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796e7720a08a9c5047bbaf0af9fc5d12.png)
请问:该老师本次购买的商品价值最低多少?最高多少?(按商家标示的淘宝价格计算,精确到元即可,已知该老师用了
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93528f45405fd17d905ef4f75165d6.png)
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名校
2 . 已知集合
,
,设集合
同时满足下列三个条件:①
;②若
,则
;③若
,则
.
(
)当
时,一个满足条件的集合
是__________ .(写出一个即可).
(
)当
时,满足条件的集合
的个数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2dd2c7f4bf194e5cf83eb8e01f491f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45020afb5156159ad42add5537797ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827e0933211772799f65eccd2fbce592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde2827722685b8a71f9aae2dc4d7484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc1108d22143e834bd69eeb9fd8775a.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764eff906937f9b1fb58e5abfb2eb8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2017-10-31更新
|
1184次组卷
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5卷引用:北京市朝阳陈经纶中学2016-2017学年高一上期中数学试题
3 . 对于非负整数集合S(非空),若对任意
,
,都有
,或者
,则称S为一个好集合,以下记
为S的元素个数.
(1)写出两个所有的元素均小于3的好集合;(给出结论即可)
(2)设集合
,
,若集合S为好集合,求出a,b,c,d所满足的条件;(需说明理由)
(3)若好集合S满足
,求证:S中存在元素m,使得S中所有元素均为m的整数倍
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c8b2714e2f6ddfdd6b05d3b4de1149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8e5872f45d4b878b0119997cb5bae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84734fbba70c0b45045fabf8090f810b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911cdb689ca80557ce076cb49b3ee498.png)
(1)写出两个所有的元素均小于3的好集合;(给出结论即可)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8518dab1e2a5525a4311a8cca1700cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951836ef5e4cfd3689a94810e0f8d43d.png)
(3)若好集合S满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8893fe5f594a2bd8f8f89eb752c18c40.png)
您最近一年使用:0次
2021-09-08更新
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493次组卷
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5卷引用:上海市张堰中学2020-2021学年高一上学期10月月考数学试题
上海市张堰中学2020-2021学年高一上学期10月月考数学试题(已下线)专题02 集合与常用逻辑用语常考压轴题型-2021-2022学年高一《新题速递·数学》(人教A版2019)(已下线)1.1 集合的运算(第4课时)第一章 集合与逻辑(B卷·提升能力)(已下线)难关必刷01集合的综合问题(3种题型30题专项训练)-【满分全攻略】(沪教版2020必修第一册)
4 . 已知二次函数
满足下列3个条件:
①
的图象过坐标原点;②对于任意
都有
;③对于任意
都有
.
(1)求函数
的解析式;
(2)令
.(其中m为参数)
①求函数
的单调区间;
②设
,函数
在区间
上既有最大值又有最小值,请写出实数p,q的取值范围.(用m表示出p,q范围即可,不需要过程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00cbf67f0605a8d1f4499b156785001f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b129a86f37fbbdf5a5808f13924e819f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b45f20b8f07836bb5d9941ae862233.png)
①求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e257b2b02bcd57c116841807979bbc.png)
您最近一年使用:0次
2020-01-04更新
|
393次组卷
|
3卷引用:【市级联考】江苏省扬州市2018—2019学年高一第一学期期末检测试题数学
名校
5 . 已知:集合
,其中
.
,称
为
的第
个坐标分量.若
,且满足如下两条性质:
①
中元素个数不少于
个.
②
,
,
,存在
,使得
,
,
的第
个坐标分量都是
.则称
为
的一个好子集.
(
)若
为
的一个好子集,且
,
,写出
,
.
(
)若
为
的一个好子集,求证:
中元素个数不超过
.
(
)若
为
的一个好子集且
中恰好有
个元素,求证:一定存在唯一一个
,使得
中所有元素的第
个坐标分量都是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04c8d2e5962266734b677842b1985cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd012d9216e34923d1e1a5e1481483e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d05f3a6e0d625cf73bb656dd85f666d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d218f9864db4a589a4778fcb4d23bb32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a86c79fb771a07a413c755e4295b160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570f38996525564d196bce79c3fef9a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e1862efa4931cbf76743033ad6f1e3.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30814d8d521fc3932d9215abb82afcd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090a10ccb89e17789ec5ef5d04093c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3342a206b878dd392294c8100a9c73b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5c085395803c2794ea1e5b3d685c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e1862efa4931cbf76743033ad6f1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f1ad18371ec533aeac27cf1fad95c1.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e1862efa4931cbf76743033ad6f1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f1ad18371ec533aeac27cf1fad95c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c632c1dee2f3849015044acedc50bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
您最近一年使用:0次
2018-07-02更新
|
521次组卷
|
5卷引用:北京师范大学第二附属中学2017~2018学年度第一学期期中考试高一数学试卷
北京师范大学第二附属中学2017~2018学年度第一学期期中考试高一数学试卷【全国百强校】北京市西城区北京师范大学第二附属中学2017-2018学年高一上学期期中考试数学试题(已下线)卷16-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(北京专用)北京市中国科学院附属实验学校2021-2022学年高二9月月考数学试题北京市第二十中学2020-2021学年高二上学期期期末试题
6 . 某公司计划投资开发一种新能源产品,预计能获得10万元
1000万元的收益.现准备制定一个对开发科研小组的奖励方案:奖金
(单位:万元)随收益
(单位:万元)的增加而增加,且奖金总数不超过9万元,同时奖金总数不超过收益的
.
(Ⅰ)若建立奖励方案函数模型
,试确定这个函数的定义域、值域和
的范围;
(Ⅱ)现有两个奖励函数模型:①
;②
.试分析这两个函数模型是否符合公司的要求?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481b17dd4d5c68caedac72161c7777c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9fd62e62750b30638385031737f89.png)
(Ⅰ)若建立奖励方案函数模型
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916bb2cc1b29574ff95b47567c59ee0c.png)
(Ⅱ)现有两个奖励函数模型:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac48edcdd387f2af29c7491230a37f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8126ede0decd07e11dbc096b7abf83.png)
您最近一年使用:0次
2018-12-10更新
|
567次组卷
|
4卷引用:【校级联考】安徽皖东名校联盟2019届高三上学期第二次联考数学(理)试题
7 . 太极图是由黑白两个鱼形纹组成的图案,俗称阴阳鱼,太极图展现了一种互相转化,相对统一的和谐美.定义:能够将圆
的周长和面积同时等分成两个部分的函数称为圆
的一个“太极函数”.则下列有关说法中:①对于圆
的所有非常数函数的太极函数中,一定不能为偶函数;②函数
是圆![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/07f5f0c5ff574d97acda5ccde08c7ab9.png?resizew=23)
的一个太极函数;③存在圆O,使得
是圆O的一个太极函数; ④直线
所对应的函数一定是圆![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/07f5f0c5ff574d97acda5ccde08c7ab9.png?resizew=23)
的太极函数;⑤若函数
是圆
的太极函数,则
.所有正确的是___________ .
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/d46ff1964164482f92a174b097e85c9e.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/d46ff1964164482f92a174b097e85c9e.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/09d13ca1b7584f29bf879f96d2f032fa.png?resizew=97)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/22b62c75c58e4533a94d06423566b5be.png?resizew=103)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/07f5f0c5ff574d97acda5ccde08c7ab9.png?resizew=23)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/e8f745b46dba4e3f9e6cb157011647ad.png?resizew=107)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/7a159f969dc74d9c8d16a2e64f22a1d2.png?resizew=91)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/342fbc44ef374d3a921bf28a320dfe3b.png?resizew=177)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/07f5f0c5ff574d97acda5ccde08c7ab9.png?resizew=23)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/05a746b7fcc24f748eef5a8a71fd784b.png?resizew=201)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/791ed4ad68564e89b37d27e644f7ae01.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/09d13ca1b7584f29bf879f96d2f032fa.png?resizew=97)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/3f20ee04df6b435a90a349854f42c422.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2016/7/15/1572922760560640/1572922766753792/STEM/715580bf-2b1a-459c-a2c7-5f8fecd84cd2.png?resizew=161)
您最近一年使用:0次
2016-12-04更新
|
286次组卷
|
2卷引用:2016届四川省树德中学6月高考适应性测试理科数学试卷
8 . 已知函数
,其中
表示不超过实数
的最大整数,关于
有下述四个结论:
①
的一个周期是
; ②
是非奇非偶函数;
③
在
单调递减; ④
的最大值大于
.
其中所有正确结论的编号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25adaad77fd6f12fc3f1ad8ede621ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
其中所有正确结论的编号是( )
A.①②④ | B.②④ | C.①③ | D.①② |
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2020-04-23更新
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9卷引用:福建省漳州市南平市2019-2020学年高三第二次教学质量检测理科数学试题
福建省漳州市南平市2019-2020学年高三第二次教学质量检测理科数学试题福建省漳州市、南平市2020届高三高考数学(理科)二模试题(已下线)第02练 常用逻辑用语-2021年高考数学(文)一轮复习小题必刷(已下线)第04练 函数的基本性质-2021年高考数学(理)一轮复习小题必刷福建省漳州市2020届高三高中毕业班第二次教学质量检测数学(理)试题(已下线)专题17 数学中的新定义问题-2021年高考冲刺之二轮专题精讲精析(已下线)解密03 函数及其性质(分层训练)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练(已下线)专题1-2 简易逻辑题型归类-1陕西省西安市周至县第四中学2022-2023学年高二下学期期末理科数学试题
2014·上海·二模
名校
9 . 对于函数
,若存在区间
,使得
,则称函数
为“可等域函数”,区间
为函数
的一个“可等域区间”.给出下列4个函数:
①
;②
; ③
; ④
.
其中存在唯一“可等域区间”的“可等域函数”为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4728362b29de88a7a9b5b5d3bf6d894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd1ca0cf68bef34f39b9701f0b56205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94a72c1a0c2801efe9f3bb1a412c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1439c562a1331c7245f7ad4c70e0b6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de73a16db57317970e8da776b78af9ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda824b37b5420579555fdacece101ec.png)
其中存在唯一“可等域区间”的“可等域函数”为( )
A.①②③ | B.②③ | C.①③ | D.②③④ |
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2014-04-24更新
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8卷引用:2014届上海市六校高三下学期第二次联考理科数学试卷
名校
10 . 已知函数
的图象与
轴的交点至少有一个在原点右侧.
(1)求实数
的取值范围;
(2)令
,求
的值(其中
表示不超过
的最大整数,例如:
,
);
(3)对(2)中的
求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b2f731d1c616a53042e3fa76fc8c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f5b2a73b0754432a8a71902665eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1009921fd9a0ac0ae0a1f7a5db4886c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7054b4cdb50f283d6db90ab1a7ad877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ae4ee70c548e841fd7ceeac3250b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447edcfb531a10755c19709915f0376e.png)
(3)对(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca362741894cc45c66846ffa05360efe.png)
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2019-12-03更新
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437次组卷
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3卷引用:上海市上海师范大学附属中学2018-2019学年高三上学期10月月考数学试题
上海市上海师范大学附属中学2018-2019学年高三上学期10月月考数学试题上海师范大学附属中学2022-2023学年高一上学期期中数学试题(已下线)第二章 一元二次函数、方程和不等式(压轴必刷30题4种题型专项训练)-【满分全攻略】(人教A版2019必修第一册)