1 . 如图,点P是半径为2的圆O上一点,现将如图放置的边长为2的正方形
(顶点A与P重合)沿圆周逆时针滚动.若从点A离开圆周的这一刻开始,正方形滚动至使点A再次回到圆周上为止,称为正方形滚动了一轮,则当点A第一次回到点P的位置时,正方形滚动了________ 轮,此时点A走过的路径的长度为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/2d2724c0-4d86-4f3e-bd6a-a7e7783ba9ea.png?resizew=188)
您最近一年使用:0次
2022-03-18更新
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1169次组卷
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7卷引用:浙江省金丽衢十二校、七彩阳光联盟2022届高三下学期3月阶段性联考数学试题
浙江省金丽衢十二校、七彩阳光联盟2022届高三下学期3月阶段性联考数学试题湖南省长沙市长郡中学2022届高三下学期高考前冲刺(一)数学试题广东省揭阳市2021-2022学年高二下学期期末数学试题(已下线)5.1 三角函数的定义(精练)-【一隅三反】2023年高考数学一轮复习(提升版)(新高考地区专用)湖北省武昌实验中学2023届高考适应性考试数学试题江西省丰城中学2022-2023学年高二下学期3月月考数学试题四川省雅安市天立高级中学2023届高三上学期9月月考数学(理)试题
名校
2 . 如图所示,将平面直角坐标系中的格点 (横、纵坐标均为整数的点) 的横、纵坐标之和作为标签,例如:原点处标签为0,记为
;点
处标签为1,记为
;点
处标签为 2,记为
;点
处标签为1,记为
;点
处标签为0,记为
以此类推, 格点
处标签为
,记
,则( )
![](https://img.xkw.com/dksih/QBM/2022/1/14/2894540927213568/2915714172878848/STEM/e52f64de-bcb4-4e43-b60d-c2a116e33d2a.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3527fda0e290bfa83f8e39ffad1f659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c25fdbbe7d5119ca842a37a4a9c3859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1126d99dd824dd890c5df5262af98f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2efba990f1fca3fe00fb5e0a7fff0bf0.png)
![](https://img.xkw.com/dksih/QBM/2022/1/14/2894540927213568/2915714172878848/STEM/e52f64de-bcb4-4e43-b60d-c2a116e33d2a.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-02-13更新
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4卷引用:辽宁省大连市2021-2022学年高三上学期期末数学试题
辽宁省大连市2021-2022学年高三上学期期末数学试题(已下线)技巧02 多选题解法与技巧(练)--第二篇 解题技巧篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》湖南省长沙市长郡中学2022届高三下学期高考前保温卷数学试题(已下线)2022年高考考前20天终极冲刺攻略(三)【数学】(新高考地区专用)(5月31日)
3 . 已知
行
列
的数表
中,对任意的
,
,都有
.若当
时,总有
,则称数表A为典型表,此时记
.
(1)若数表
,
,请直接写出B,C是否是典型表;
(2)当
时,是否存在典型表A使得
,若存在,请写出一个A;若不存在,请说明理由;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7e250aad05323c9149dc8ad96e4f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99648a1c5d4727be45896e91cccf3fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c9d0659cb8619fedee2eec1c5bb03f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbd4cbb703eb9bd566273e8c680a49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eebab31ed753d75177744c2ef33380a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b98c229c9ae9b121c9f1cf5cfbe324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba4a9285ee6ccdbdfc8b2d04de6b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968756d32748f1ee69e14c0944d6c3e0.png)
(1)若数表
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80dfa02ca1db6fd7d77f6ca9df5ffe75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ceb0bba344ccceaa98f18c9d9187bca.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c345907ebe27888332b1b44c666cc47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1848d85c47d54c9b50093428004c47.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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669次组卷
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4卷引用:北京市海淀区2022届高三上学期期末练习数学试题
名校
解题方法
4 . 若数列
满足
,且
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c8d0474f7d81ef8dbefaacfd5afe7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39304438196453e3f307a22e2f8b8fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e980af38155f21ae99a165c77ca1bd31.png)
您最近一年使用:0次
2021-12-23更新
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866次组卷
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5卷引用:上海市黄浦区2022届高三一模数学试题
上海市黄浦区2022届高三一模数学试题(已下线)上海市黄浦区2022届高三上学期一模数学试题(已下线)2020年高考浙江数学高考真题变式题11-16题(已下线)数学-2022年高考押题预测卷03(上海专用)北京师范大学第二附属中学2021-2022学年高二下学期6月月考数学试题
名校
解题方法
5 . 设正整数
,其中对于任意
,
. 函数
满足
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06df740022c2c594bd0c069626e2cddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560d779b6110e79275749b1911a557f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5a20ff43995563aa4638efdf46359c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b8de661bf5d2d2ab1fa2bd97babb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092d08b0a38fd9bef76f7168ce1fc9dc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 对于数列
:
,
,
(
,
),定义“
变换”:
将数列
变换成数列
:
,
,
,其中
(
),且
.这种
变换“记作
.
继续对数列
进行“
变换”,得到数列
:
,
,
,依此类推,当得到的数列各项均为0时变换结束.
(1)试问
:2,6,4经过不断的“
变换”能否结束?若能,请依次写出经过“
变换”得到的各数列;若不能,说明理由;
(2)设
:
,
,
,
.若
:
,2,
(
),且
的各项之和为2012.求
,
;
(3)在(2)的条件下,若数列
再经过
次“
变换”得到的数列各项之和最小,求
的最小值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30e41720595d1f4d83a77514980f9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79059a3366ed1b339ba1317ce8a1e7f9.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1db52d417ef7dd57eeb2cf1ff03f079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd74add83d098d62539e2d8234e2d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e374762fa02d95091036d3d4df4e590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cbe989475017c34c79eadde5fb93f9.png)
继续对数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db84454f051d418a4904fa423ab8b304.png)
(1)试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cbe989475017c34c79eadde5fb93f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1132de2e8913dba9c5cc2396ecb09fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)在(2)的条件下,若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2021-10-12更新
|
346次组卷
|
4卷引用:上海市2022届高三上学期一模暨春考模拟卷(一)数学试题
上海市2022届高三上学期一模暨春考模拟卷(一)数学试题(已下线)考向29 推理与证明-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)数学-2022年高考押题预测卷01(上海专用)上海市南洋模范中学2020届高三下学期4月月考数学试题
7 . 绝对值
的集合意义是数轴上的点
与点1之间的距离,那么对于实数
,
的几何意义即为点
与点
、点b的距离之和.
(1)直接写出
与
的最小值,并写出取到最小值时
满足的条件;
(2)设
是给定的
个实数,记
,
;
试猜想:若
,
,
,则当
___________时
取到最小值;若
,
,
,则当
___________时,
取到最小值;(直接写出结果即可)
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fd577bf5527f3b871e67292b36a0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6486c37eab1a00d884e4db6e7ade88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332257fa189ce0cc2c256005ef753d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35517c0a8ac06bbbe5f2f708c75b49a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4bbf6d02c754d5596a262901fd51e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7844b064de3c3384a7fa4e7f24b0b27c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02418d59ae2795ffe006508efd5d7a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d839d02d5c3486b09c590cd7fc3b0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1782eeb4a85a5d31019b2bbf9ba15775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff2aa68223dfc02f39d7d10fa005387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2397df3279607612ea3cbef101ee0bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44c45ef0334070fc149b452dee26ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c990bb0645f28fde7b3b4775ca2e57fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff2aa68223dfc02f39d7d10fa005387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2397df3279607612ea3cbef101ee0bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44c45ef0334070fc149b452dee26ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885002f9877ae27ac8185d6290f7ded5.png)
您最近一年使用:0次
8 . 观察下列等式
①
②
③
④
……
照此规律,第
(
)个等式可为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47eb41c84c30ec15c4444fefc30e870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d72796e1afc9cb8ffeb0a46d6ad2d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36e43d87a881cd11ccc7f112214a72a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9905db04e3b65cd3c931c59554cc37c.png)
……
照此规律,第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
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2021-08-09更新
|
113次组卷
|
3卷引用:青海省海南州高级中学、贵德中学2020-2021学年高二下学期期中联考数学(理)试题
9 . 将全体正奇数排成一个三角形数阵:
1
3 5
11 9 7
13 15 17 19
29 27 25 23 21
. . . . . . . . .
按照以上排列的规律,前n行(n ≥3)下列结论正确的是( )
1
3 5
11 9 7
13 15 17 19
29 27 25 23 21
. . . . . . . . .
按照以上排列的规律,前n行(n ≥3)下列结论正确的是( )
A.若n是偶数,第n 行从左向右的第3 个数是 ![]() |
B.若n是奇数,第n 行从左向右的第3 个数是 ![]() |
C.若n是奇数,第n 行从左向右的第3 个数是 ![]() |
D.前n 行所有数的和是![]() |
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10 . 设集合
,其中
是正整数,记
.对于
,
,若存在整数k,满足
,则称
整除
,设
是满足
整除
的数对
的个数.
(I)若
,
,写出
,
的值;
(Ⅱ)求
的最大值;
(Ⅲ)设A中最小的元素为a,求使得
取到最大值时的所有集合A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a784e0ba1c17aba6990123fe39b89114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2696df108ff4ad5a2d46a1b656f859e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f98b06f1247856f443a4cb571104e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097d09a11d999ee464ee6e67ee55783e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059a6c5a965c335b8da05e697da2c7c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319b6a5373bc8eb13772b8e6d047779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca83d5e388afb005ccf2548661775c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059a6c5a965c335b8da05e697da2c7c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319b6a5373bc8eb13772b8e6d047779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612f4d31671d4eb163a5a1ed0570af9b.png)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8348dd5d3b8c0ed6a0738d31a0cf3b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1bc81e3941341782c1e4babf150ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca83d5e388afb005ccf2548661775c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbf211a16295eed3dd56fc97d8cc618.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca83d5e388afb005ccf2548661775c0.png)
(Ⅲ)设A中最小的元素为a,求使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca83d5e388afb005ccf2548661775c0.png)
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2020-11-06更新
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661次组卷
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4卷引用:北京市朝阳区2020届高三年级下学期二模数学试题