解题方法
1 . 设函数
的定义域为
,若存在实数
,使得对于任意
,都有
,则称函数
有上界,实数
的最小值为函数
的上确界;记集合
{
在区间
上是严格增函数};
(1)求函数
的上确界;
(2)若
,求
的最大值;
(3)设函数
一定义域为
;若
,且
有上界,求证:
,且存在函数
,它的上确界为0;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a82f9ed1fed1e3aa42434da4671b42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5830648092860499a7017d2ee157e77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617da64f56745521a83fe4b4bf5f20a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf860993c4cee78cdfed6d29273cf76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c28c7adedb14985ec58d6a016770706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21f0ef09f65ef153b4df26a5b9b7d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
2 . 设数列
的前
项和为
,若存在非零常数
,使得对任意正整数
,都有
,则称数列
具有性质
:①存在等差数列
具有性质
;②不存在等比数列
具有性质
;对于以上两个命题,下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfdfb64f33ff54ec06e98975c17b2034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.①真②真 | B.①真②假 | C.①假②真 | D.①假②假 |
您最近一年使用:0次
3 . 甲、乙、丙三辆出租车2023年运营的相关数据如下表:
出租车空驶率
;依据以上数据,小明建立了求解三辆车的空驶率的模型
,并求得甲、乙、丙的空驶率分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_______ (精确到0.01)
甲 | 乙 | 丙 | |
接单量t(单) | 7831 | 8225 | 8338 |
油费s(元) | 107150 | 110264 | 110376 |
平均每单里程k(公里) | 15 | 15 | 15 |
平均每公里油费a(元) | 0.7 | 0.7 | 0.7 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e6da2364add48ae7f6ff8435cbda6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b647d4096110f37983aa7cba7c57629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd9ae72c2a50be0fcb60f4196bf31f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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名校
解题方法
4 . 掷黑、白两枚质地均匀的骰子,
(1)写出事件A:“点数都是偶数”所对应的子集并求其概率;
(2)验证事件“点数和为7”与事件“白色骰子的点数为1”是独立的.
(1)写出事件A:“点数都是偶数”所对应的子集并求其概率;
(2)验证事件“点数和为7”与事件“白色骰子的点数为1”是独立的.
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名校
解题方法
5 . 已知椭圆
为
的左、右焦点,点A在
上,直线
与圆
相切.
(1)求
的周长;
(2)若直线
经过
的右顶点,求直线
的方程;
(3)设点
在直线
上,
为原点,若
,求证:直线
与圆
相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cbcdbead5feb9ed5ebd48d2a9d15d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e133eb3bb45bc93ecc88a186d7be937b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50e597f9c9d0f6d4ccf34c0e5593df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-12-12更新
|
544次组卷
|
2卷引用:2024届上海市长宁区高考一模数学试题
6 . 豆腐发酵后表面长出一层白绒绒的长毛就成了毛豆腐,将三角形豆腐ABC悬空挂在发酵空间内,记发酵后毛豆腐所构成的几何体为T.若忽略三角形豆腐
的厚度,设
,点
在
内部.假设对于任意点
,满足
的点
都在
内,且对于
内任意一点
,都存在点
,满足
,则
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd01f8d99637871de828cb6b87ec7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13626c6a20a7b6f04afadaa0c7827bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13626c6a20a7b6f04afadaa0c7827bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知椭圆
的离心率是
,点
是椭圆的上顶点,点
是椭圆上不与椭圆顶点重合的任意一点.
(1)求椭圆
的方程;
(2)设圆
.若直线
与圆
相切,求点
的坐标;
(3)若点
是椭圆
上不与椭圆顶点重合且异于点
的任意一点,点
关于
轴的对称点是点
,直线
分别交
轴与点
、点
,探究
是否为定值,若为定值,求出该定值,若不为定值,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca7e0ff6a7539423620b5ecfe0ea1ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d4d459703d0d9793b807248b874bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a1e828b35437290433f4c99c3eea2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5850ed6ad7d8e9652625bd03766c61df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851aa470283a8993975229cdad3021e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb74ca8fc86ddef279e33f31c1fedda.png)
您最近一年使用:0次
2023-05-31更新
|
843次组卷
|
3卷引用:上海市延安中学2023届高三三模数学试题
8 . (1)求简谐振动
的振幅、周期和初相位
;
(2)若函数
在区间
上有唯一的极大值点,求实数m的取值范围;
(3)设
,
,若函数
在区间
上是严格增函数,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c793183ec51b2304e5f3eb0e422a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44e89f32c090e204068d3ab249e7d40.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939d602a617905899df2f5cfc46eda2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d45c738904d7aea7b2aa9caa2aa315.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daed7d15d3b8296ed1b51d14822f51c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083479b94380e8d659eff92d10a1989d.png)
您最近一年使用:0次
名校
解题方法
9 . 设各项均为实数的等差数列
和
的前n项和分别为
和
,对于方程①
,②
,③
.下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71fa32e4f59e269561478a3c140b768f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170558dbf787a31bfcd6b2ace86e6d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7287080c46b1377e2534f8139673f09.png)
A.若①有实根,②有实根,则③有实根 |
B.若①有实根,②无实根,则③有实根 |
C.若①无实根,②有实根,则③无实根 |
D.若①无实根,②无实根,则③无实根 |
您最近一年使用:0次
解题方法
10 . 已知函数
的定义域为(0,+∞);
(1)若
;
①求曲线
在点(1,0)处的切线方程;
②求函数
的单调减区间和极小值;
(2)若对任意
,函数
在区间(a,b]上均无最小值,且对于任意
,当
时,都有
,求证:当
时,
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
①求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a34ebd691809debd65573b607068f08.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383a70d2cb5e4f0faa244967f3b359b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1505d56f0b35fe7f2de1fe1888036e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81061b8ba2253a8650baa321163c7cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05527d21914e91e6ce6b8db0f5c1d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac0c4f74d16d30a8799b03b41460cfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb4beec99ba34bfecf6b25c43036ced.png)
您最近一年使用:0次