1 . 已知①设函数
的值域是
,对于
中的每个
,若函数
在每一处
都等于它对应的
,这样的函数
叫做函数
的反函数,记作
,我们习惯记自变量为
,因此
可改成
即为原函数的反函数.易知
与
互为反函数,且
.如
的反函数是
可改写成
即为
的反函数,
与
互为反函数.②
是定义在
且取值于
的一个函数,定义![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6c5d65e0ccd27748fcbc420c6a2e22.png)
,则称
是函数
在
上的
次迭代.例如
,则
.对于一些相对复杂的函数,为求出其
次迭代函数,我们引入如下一种关系:对于给定的函数
和
,若函数
的反函数
存在,且有
,称
与
关于
相似,记作
,其中
称为桥函数,桥函数满足以下性质:
(i)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0e8a92152787274ed6e06a21ef1661.png)
(ii)若
为
的一个不动点,即
,则
为
的一个不动点.
(1)若函数
,求
(写出结果即可)
(2)证明:若
,则
.
(3)若函数
,求
(桥函数可选取
),若
,试选取恰当桥函数,计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e66c24e657d998beb013ad1fb311d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f93e3581e920716e710e22b31006bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f93e3581e920716e710e22b31006bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63ced31d098cfb0cf14d906e97e6353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e66c24e657d998beb013ad1fb311d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955f3c2b80eebc3f88c804112e5f41f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955f3c2b80eebc3f88c804112e5f41f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb87ce86e2c9a1a8188b03b74438fdd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb87ce86e2c9a1a8188b03b74438fdd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e66c24e657d998beb013ad1fb311d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ef38135b0e7906687d8a4918a4cb67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43737e3ca063dfc210d0c72924a4930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808bd2fc4b344e7669fca65b4fa122df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808bd2fc4b344e7669fca65b4fa122df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6c5d65e0ccd27748fcbc420c6a2e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c110a1293773729278a214c7fe8d544e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33cfe27fd2276a7c542f062c17b4d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052ddf3664af9ab2990f3ea622997e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910ca4e4f009554b599eab90e1d94c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71567deb76e48f8a2424b06536cbe465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66b033ee7a03c7b3508583481465275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1249f186df944244da02e1b8c754005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1249f186df944244da02e1b8c754005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0e8a92152787274ed6e06a21ef1661.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f199ad3fad8657afa38f370b319a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192bb45bd15b200f40b34377bc58905b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33cfe27fd2276a7c542f062c17b4d85.png)
(2)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1249f186df944244da02e1b8c754005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99315f5b2ae9bea18e06401b41d3780c.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becd598a11b876d858728161a7a09705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33cfe27fd2276a7c542f062c17b4d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ab7717944da2b6cc305b6a65f91408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85f9d9be0ba965ff7beb0e011267f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bee7f1ccd52c7d526b6d466b970e769.png)
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2 . 对于正整数m,n,存在唯一的自然数a,b,使得
,其中
,我们记
.对任意正整数
,定义
的生成数列为
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874689ac8a6f70ecd93aa1aaf7d626f6.png)
.
(1)求
和
.
(2)求
的前3项.
(3)存在
,使得
,且对任意
成立.考虑
的值:当
时,定义数列
的变换数列
的通项公式为
当
时,定义数列
的变换数列
的通项公式为
若数列
和数列
相同,则定义函数
,其中函数
的定义域为正整数集.
(ⅰ)求证:函数
是增函数.
(ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad12b60594a6408ccc237cad2880088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff38a5b95f1fb452d87fce9c80b1249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574aa06d3d4f9952157c60ec8f40b839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5914cd027a87542e12cfb0c92c0aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874689ac8a6f70ecd93aa1aaf7d626f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dbb663375b927f3c00d1be3fda1508.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37dbd8745cf6246eea337a1bf91258c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87dc8de41005802093ae66c08f46a7a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926145a2b2232a88ceed6e69dc050265.png)
(3)存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623ebc0f0eba98e8f63b7cd982c11009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8144524289a76dadf88c02976acea2db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf0ce448d146abfcd0bd689b925d168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c20d94765a05ee86edf370dd64fcff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5914cd027a87542e12cfb0c92c0aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d054e320d843bf0ca4a620519f75ebaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8121a889da1f3ecbecd5387a9473c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98b98330b62847c220ab2f127e11391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5914cd027a87542e12cfb0c92c0aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d054e320d843bf0ca4a620519f75ebaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf19212dd24556423636ce37034cdf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d054e320d843bf0ca4a620519f75ebaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96dbc1106da9238ec6300e13ca3d9b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46498efb2e485c1172abe2189e498613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88ba8e1dc91318d8a9e1856d8ae080e.png)
(ⅰ)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88ba8e1dc91318d8a9e1856d8ae080e.png)
(ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee5e2ada7f1e99bf68508d21b8f6fb7.png)
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3 . 对于整数除以某个正整数的问题,如果只关心余数的情况,就会产生同余的概念.关于同余的概念如下:用给定的正整数
分别除整数
,若所得的余数(小于正整数
的自然数,即0,1,
)相等,则称
对模
同余,记作
.例如:因为
,
,所以
;因为
,所以
.表示对模
同余关系的式子叫做模
的同余式,简称同余式,同余式的记号
是高斯在1800年首创.两个同模的同余式也能够进行加法和减法运算,其运算规则如下:已知整数
,正整数
,若
,则
,
.阅读上述材料,解决下列问题:
(1)若
,且整数
,求
的值;
(2)已知整数
,正整数
,证明:若
,则
;
(3)若
,其中
为正整数,
为非负整数,证明:
能被11整除的充要条件为
能被11整除.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18c18c0cebecdfc0f63f64b98b8618f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf17f75882ab0a28a78c8c49d1d1255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135a1a6b030325a6b417d3d5fecb8778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bd5638bfe2f006ab5f707f5039a160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d62bbd00daf6bbdde9b3d936ab4f2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65d0f1fb1b4f913af5741ebe2e98d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18eae33f07a441a87b75445811e87c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf17f75882ab0a28a78c8c49d1d1255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa91f51e5e0650e3fae950da7cbf4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3113592ea3c033253299a0bdbb619897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51c59ce2cd593666329587abed347bf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1774978271a3e5a0b970b47de774f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fc88e26cec31df99dfa1824587ae30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa91f51e5e0650e3fae950da7cbf4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce06d8c49a3c57e5cf10e773818a2467.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966aecd0328697920c0b7a22726cd33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b65a63629464f5a2c90356e367f66be.png)
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名校
4 . n个有次序的实数
,
,…,
所组成的有序数组
称为一个n维向量,其中
称为该向量的第i个分量.特别地,对一个n维向量
,若
,称
为n维信号向量.设
,
,则
和
的内积定义为
,且
.
(1)直接写出4个两两垂直的4维信号向量;
(2)证明:不存在10个两两垂直的10维信号向量;
(3)已知k个两两垂直的2024维信号向量
,
,…,
满足它们的前m个分量都是相同的,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa87d9662032c4b53e41634f3424b0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94fcc44ac04f54d5fcc1a6154b8b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a414d372b680499f1c8ca1a7ae5f4d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cfee5ec6cb12cb32e04de5c387a2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e45b1c120de76ab330bf5e9cb98cce.png)
(1)直接写出4个两两垂直的4维信号向量;
(2)证明:不存在10个两两垂直的10维信号向量;
(3)已知k个两两垂直的2024维信号向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9541e55ef7917c4d5eec7e5062a6f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de4fe4539ececcc2452bea1046c7148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c3f353a2ff4a61f8b81a3314c09e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2182d0dad848ccc76944d976befbf2.png)
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解题方法
5 . 在农业生产中,自动化控制技术的应用有效提高了农业生产效率.如图所示,在某矩形试验田
中,
为
中点,
为
中点,三角形
区域种植小麦,梯形
区域种植玉米.为提高劳动效率,节约用水,现采用自动浇水机器人(忽略机器人的面积)对试验田进行灌溉.已知该机器人沿着以
为焦点,
为准线的抛物线运动,且向以自身为圆心,半径为
的圆形区域内浇水.记小麦田能够被机器人灌溉的面积为
,则( )(若直线
与抛物线
相切于点
,平行于
的直线
与
交于
两点,记
与
围成的图形面积为
的面积为
,则
)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/c1b1ea7b-130e-42e9-a7a3-db69032da8b3.png?resizew=101)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0edfc3839424ce1badc649649396f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b380fa255b25f1b385d4fae73bf0aa33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4bca27e74a440b335517f635149d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e453b6640e3dc4c7b7b2a996a2199ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17eefd5373493756cb56389fbec3eca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45cf83ffdd7f12a39d6d2f4c9038cb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/c1b1ea7b-130e-42e9-a7a3-db69032da8b3.png?resizew=101)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 对于正整数
,最接近
的正整数设为
,如
,记
,从全体正整数中除去所有
,余下的正整数按从小到大的顺序排列得到数列
,则数列
的前8项和为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c82c7591e80b01a6fac3f7cd499514d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46752bd68b97f8cb69b26e14acdc468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
2023-02-03更新
|
837次组卷
|
3卷引用:上海外国语大学附属浦东外国语学校2022-2023学年高二下学期期末数学试题
上海外国语大学附属浦东外国语学校2022-2023学年高二下学期期末数学试题河南省驻马店市2022-2023学年高三上学期期末统一考试数学(理科)试题(已下线)第1题 高斯函数与数列最值结合(压轴小题6月)
名校
7 . 设A是由
个实数组成的2行n列的矩阵,满足:每个数的绝对值不大于1,且所有数的和为零.记
为所有这样的矩阵构成的集合.记
为A的第一行各数之和,
为A的第二行各数之和,
为A的第i列各数之和
.记
为
、
、
、
、…、
中的最小值.
(1)若矩阵
,求
;
(2)对所有的矩阵
,求
的最大值;
(3)给定
,对所有的矩阵
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9dbdea32a8f7b9fd4c8982eef6dea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fc1924d5c54d4f2824f6accc1238b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b68fd1ac04715b65105c0cf40aa84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a2629e9e3b3fcf0c0bdd49c76b95cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a954ad5b391cfc9440f0444cbbfa889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f128d1af43d66e8048295604ef89046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30773f6541752c8d133db5662ccee553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d137142642163af066957fe19218ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260bcd4709ef67852ef6e2de9841e75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af2bb6f225862039961601a07e7d7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9624751c77e7b93a0166bbdc302cdc6.png)
(1)若矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63da318b4a47902b2a7979230e997e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
(2)对所有的矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b432f6219d00bd0b2bc483401b9dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
(3)给定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18969d9db906a0f002b762113ecf077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01aef0b7f72cd41492cade2785ccc6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
您最近一年使用:0次
2022-05-28更新
|
454次组卷
|
3卷引用:北京市第 八十中学2022-2023学年高二上学期期中考试数学试题
名校
解题方法
8 . 在平面直角坐标系中,两点
、
的“曼哈顿距离”定义为
,记为
,如点
、
的“曼哈顿距离”为9,记为
.
(1)点
,
是满足
的动点
的集合,求点集
所占区域的面积;
(2)动点
在直线
上,动点
在函数
图像上,求
的最小值;
(3)动点
在函数
的图像上,点
,
的最大值记为
,请选择下列二问中的一问,做出解答:
①求证:不存在实数
、
,使
;
②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bd36d19352628cb54c214436ee3322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27bd43bc4af1e3b28d0de0cc561b879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c59185f3d9547cd9065d10dcbb4127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e66b64267481405cc49dad9d8916c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9404ad60dd25cb0df6c37032d50b72ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dafabc98a78486af4fbf346e7cfad11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bd35a290bbcf999ec26930c747084b.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9404ad60dd25cb0df6c37032d50b72ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7bce4bf9358998e26ff0715c909a19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea05a2396e436b4df62d6328dbeaddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e66b64267481405cc49dad9d8916c7.png)
(3)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c064084f6326c8b994c2bcb80ad258da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4a30a3210d0a8130d5a1183289c23f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e66b64267481405cc49dad9d8916c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
①求证:不存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d41cfe4280d2384c9dd4287c8f07954.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
您最近一年使用:0次
9 . 下列四个命题(
为自然对数的底数)
①
;②
;③
;④
.
其中真命题序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa011355ad848a4003473335a4919fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0452747255a29658ac38f97be8048e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1ebf06bfb3a4afee47c7de5dacb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902d2187b7b2449a1960fada9a89a0e4.png)
其中真命题序号为
您最近一年使用:0次
10 . 已知抛物线x2=2py(p>0)上一点R(m,2)到它的准线的距离为3.若点A,B,C分别在抛物线上,且点A、C在y轴右侧,点B在y轴左侧,△ABC的重心G在y轴上,直线AB交y轴于点M且满足3|AM|<2|BM|,直线BC交y轴于点N.记△ABC,△AMG,△CNG的面积分别为S1,S2,S3.
(2)求
的取值范围.
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdf9db375bb55a6b1edc8bc05a2fb99c.png)
您最近一年使用:0次
2020-03-19更新
|
1495次组卷
|
4卷引用:浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题
浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题(已下线)第三章 圆锥曲线的方程(A卷·知识通关练)(5)2020届浙江省名校协作体高三下学期3月第二次联考数学试题宁夏银川一中、云南省昆明一中2024届高三下学期5月联合考试二模理科数学试卷