1 . 已知
,
,
.
(1)若
,求
的最小值;
(2)设
,
,求证:
;
(3)若存在实数
,使得不等式
在区间
上恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f4ec4938c540a4a11dff445b94a932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b7ef89b540c6a358bec1237df699c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72397ee4221c347cf304d06243f24acb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb25f0934c7a7d28c08cf61481be5ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1bbe34f0f5e2b4d675b7a7316e20ea.png)
(3)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180735d52856f4393e40e28e7fcc95bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e805f02496e494e096165c64ee04944d.png)
在区间[1,4]上的最大值为
,当
取到最小值时则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7769a824e7f69fe3b6cb09e0389849e4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e805f02496e494e096165c64ee04944d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b92db837661bd16bd1b01f88f91f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7769a824e7f69fe3b6cb09e0389849e4.png)
您最近一年使用:0次
解题方法
3 . 设函数
的定义域为
,集合
.
(1)若
,
,求证:
;
(2)若
,
,若
,求实数
的取值范围;
(3)设
,
,
.讨论函数
与集合
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47326fcf6aa007c383a04edb6419410e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc132f215b296298e497f8c04a2956f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246de316aacce5e2a1b482840ff02f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57cac663990f61a4a3086c6bea3d51f9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688afe078f708dcdec80f68a1386c041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f412e27806d298e08c365ee16b00f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e74920f57028200604c2691c8f0fb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b36292fbe1b8bcd349da59c9d9e108a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d8932d7d732b430acad2a95bac798b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
解题方法
4 . 已知
.
(1)
,
,
,比较
与
的大小;
(2)设
和
均为实数,满足以下两个条件:①当
时,
的最大值为1,此时
的取值集合记为
;②对任意
且
,不等式
恒成立;求
的取值范围
(3)设
为实数,若关于
的方程
恰有两个不相等的实数根
、
且
,试将
表示为关于
的函数,并写出此函数的定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1154219ad12b83641c439681fdd055d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1419108104429f6df5d5352a05211e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579c948359646bfdd6fc9b68328aa068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5942d2289b2c2670670c0409808afea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c28f252c025c1c303e41648c8ab920.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9849dc6798e2c2ec12730b92117e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0ac8b620b5eca9daa7276712935ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9849dc6798e2c2ec12730b92117e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a863acb0ba30d483b216c4409b8b20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6baa1c342eccdee55f4b91793bfe2d9.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98230f2387a260cc02149e02603f1986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
.
(1)若f(a+1)=f(2a),求a的值;
(2)若函数y=f(x)在x∈[2,3]的最小值为5-a,求实数a的取值范围;
(3)是否存在整数m、n使得关于x的不等式m≤f(x)≤n的解集恰为[m,n]?若存在,请求出m、n的值:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c100a1c74f6dcf7940ce7f77fb1608.png)
(1)若f(a+1)=f(2a),求a的值;
(2)若函数y=f(x)在x∈[2,3]的最小值为5-a,求实数a的取值范围;
(3)是否存在整数m、n使得关于x的不等式m≤f(x)≤n的解集恰为[m,n]?若存在,请求出m、n的值:若不存在,请说明理由.
您最近一年使用:0次
2021-07-18更新
|
1054次组卷
|
5卷引用:上海市建平中学2020-2021学年高二下学期期末数学试题
上海市建平中学2020-2021学年高二下学期期末数学试题(已下线)第03讲 函数的基本性质——单调性与最大(小)值-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)辽宁省沈阳市东北育才学校2021-2022学年高一上学期10月月考数学试题(已下线)专题2.15 幂函数与二次函数-重难点题型精讲-2022年高考数学一轮复习举一反三系列(新高考地区专用)云南省红河州个旧市第三中学2022-2023学年高一下学期3月月考数学试题
解题方法
6 . 已知函数
,若关于x的方程
有且仅有四个互不相等的实根,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774b254f57cbccf78e9eaa18b8d3eec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5f12d26f275c1d7b0cc46a5df8bc6c.png)
A.(-∞,7] | B.(6, +∞) | C.(2 +∞) | D.[8, +∞) |
您最近一年使用:0次
7 . “
”期间,某电商店铺
的活动为:全场商品每满
元返
元的优惠券,可叠加使用(比如,买
元的东西,可用两张优惠券,只需付
(元),其中
是不大于
的最大整数);另一电商店铺
的活动为:全场所有商品
折销售,如果单品件数超过
件,超出的每一件单品均享受
元/件的会员价,其中
为商品原价,
为超出的单品件数优惠店,
为常数,已知若购买某种商品
件,则第
件商品享受
折优惠.此外,在店铺优惠后,扣除店铺优惠后余下的金额,电商平台全场还提供每满
元减
元的优惠,可叠加使用(比如,店铺
原价
元的一单,最终价格是
(元)).
(1)小明打算在店铺
买一款
元的耳机和一款
元的音箱,是下两单(即耳机、音箱分两次购买)划算?还是下一单(即耳机、音箱一起购买)划算?
(2)小明打算趁“
”期间囤积某生活日用品至少
件,且预算不超过
元,该生活日用品两个店铺售价均为
元/件,小明打算全部在
店铺购买或者全部在
店铺购买,试分别计算在两家店铺购买多少件该生活日用品平均价格最低,最低平均价格分别是多少.(结果保留到小数点后两位)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d410e1a41e8b5eb3b250f52111bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3779b4ea5477aebfe85113b0de1d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110e329d74716ab387dc602bb2b4f998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101d979a3432f77ae10fe6aae621bbf3.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbddcdd55142662d6ff3a7d5a7ab3092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749082d415fedaedd79359ea0878ee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba602bfa3a3ffb4fb43dc0f704a7f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b72ac611ae66b86761e080761d9aabc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf6be749959edcacf4c9d4a5ae8282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e777a20eaf4d7e451e2bb1c78ed196.png)
(1)小明打算在店铺
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f38eed00a39aae5a7232b72a4d3ed821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0ea43d65fc6a6bf339c60047941959.png)
(2)小明打算趁“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d410e1a41e8b5eb3b250f52111bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b184c94e38f1e5dbe750b2168c2a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448aaa6640cb6ba29367c2204d8c9c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
解题方法
8 . 已知函数
,函数
有三个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b424efa3640812137f419f4cd893d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6b28c29a9e823cf1d6c764323d7e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知函数
有五个不同的零点,且所有零点之和为
,则实数
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67306786168eb49664bda5876b7cd701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2021-06-22更新
|
382次组卷
|
2卷引用:河南省郑州市2020-2021学年高二下学期期末数学文科试题
10 . 函数
图象上不同两点
,
处的切线的斜率分别是
,
,规定
叫做曲线
在点
与点
之间的“弯曲度”,给出以下命题:①函数
图象上两点
与
的横坐标分别为1,2,则
;②存在这样的函数,图象上任意两点之间的“弯曲度”为常数;③设点
、
是抛物线
上不同的两点,则
;④设曲线
上不同两点
,
,且
,若
恒成立,则实数
的取值范围是
.以上正确命题的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05193d9096bd9da9230acc14228aa4e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4920bf4db93b18d4ecfdc05e310dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8605ae9897d5d6f0679b4aa80e014bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b3e87e9bb00d9ba09cb5660aebd76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ee4222da9e1c0341066ac70fd7fab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63710d6fa1a1d49e2d6c5e01eb6478e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316db967a70305dcd846281b29f421db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad613217bdff0b1c225e3e5ca31eec4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2eff609c6043c2a89a6dd163fe2244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05193d9096bd9da9230acc14228aa4e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4920bf4db93b18d4ecfdc05e310dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aeab36f3c3546b641470aad464ebd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d54d4444cd3d44a4e72c68a6013a21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d8fcaef916db4b90e9ce3054974759.png)
A.①② | B.②③ | C.③④ | D.②③④ |
您最近一年使用:0次