1 . 求证:数列
中一定有2022的倍数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69719252d1232ef3ce59579f51104c81.png)
您最近一年使用:0次
2 . 若一个直角三角形中两条直角边都是整数,且周长是面积的整数倍,则称其为“
三角形”,则这样的“
三角形”共有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
3 . 如图,
是
的内心,
的外角平分线交
于点
,直线
交
外接圆于点
,直线
与直线
交点为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9020059d62af7498039f091de6f005ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c845bb8ceaa4caef3af4f1e4366b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3e927b7b2383ccded03838ae8b30b6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/f91571d9-b908-418b-9844-65875710ce74.png?resizew=220)
您最近一年使用:0次
4 . 定义:如果甲队赢了乙队,乙队赢了丙队,而丙队又赢了甲队,则称甲乙丙为一个“友好组”.
(1)如果19支球队参加单循环比赛,求友好组个数的最大值;
(2)如果20支球队参加单循环比赛,求友好组个数的最大值.
(1)如果19支球队参加单循环比赛,求友好组个数的最大值;
(2)如果20支球队参加单循环比赛,求友好组个数的最大值.
您最近一年使用:0次
5 . 已知数列
满足
,
,且
,
.
(1)证明:
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37f186bc71846ac158e74e58e42fdcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6194b7839446c93adc1b49aefb9d7214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f5f15f044af83e89e5f99565e612d6.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6eb5f27d859a1c31601425db58c885f.png)
您最近一年使用:0次
6 . 设函数
的定义域是
,且
,
,则
=_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52866a74e4af867ceea0efb1ad06602c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e444cb797000ea1f11aa205699c3ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93687ab63fc68cbf6b8de53611e2608.png)
您最近一年使用:0次
2020-03-15更新
|
490次组卷
|
2卷引用:江苏省徐州市贾汪中学2020-2022学年高一下学期春季竞赛数学试题
7 . 设
,若
表示不超过
的最大整数,则函数
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803c1461071be7c597cde79757e7de7e.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/b07afe732d703d5664a0427ee4306be5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-09更新
|
249次组卷
|
2卷引用:江苏省徐州市贾汪中学2020-2022学年高一下学期春季竞赛数学试题
8 . 定义在
上的函数
满足:
,且函数
为奇函数
给出以下3个命题:
函数
的周期是6;
函数
的图象关于点
对称;
函数
的图象关于
轴对称
其中,真命题的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e536ecb7d0c3df2dd9314af7150b5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bf4434592e83d25834e77f5c03d8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876959b9f90f2379cf3d0927a8e31005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e75feca084dbfb9e98b719ccd37648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67773252101fb3704fdac88b5f3f1bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.3 | B.2 | C.1 | D.0 |
您最近一年使用:0次
2019-01-08更新
|
319次组卷
|
3卷引用:江苏省徐州市贾汪中学2020-2022学年高一下学期春季竞赛数学试题