名校
1 . 设
,
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37588ebc87c4098740c1bd4e79b7d0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36fc60a453c7cbb66920841dfaae7c7e.png)
您最近一年使用:0次
2 . 将顺序为1,2,…,2020的2020张卡片变成1011,1,1012,2,…,2020,1010的顺序,即原先的前1010张卡片移至第2,4,…,2020张,这称为一次操作.若从顺序1,2…,2020开始操作,则至少经过______ 次操作可以恢复到初始顺序.
您最近一年使用:0次
3 . 已知整数数列
,
,…,
,满足
,
,且
(
,2,…,9),则这样的数列个数共有______ 个.
![](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/3e35eeaabd951fb09b2926807da3685b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5cf31d666d1d0b8f2bd154c648a55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bf712339a699508c200094f66aef87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea604cb7ca4f2955d2e5c7165c4804b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
您最近一年使用:0次
4 . 设
,
,…,
满足
,
,且
,则数列的通项![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489340c9a2d70c00bae13b7018cad448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00adb12cb3410b726ebc4b18a4a218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
5 . 设
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac326f9f4ad78d0053c113f823ea6d60.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c8d0474f7d81ef8dbefaacfd5afe7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a960485f8c5b9bbd93ba135640475c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbbb0675675b7e24ab9d9514a552b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac326f9f4ad78d0053c113f823ea6d60.png)
您最近一年使用:0次
6 . 已知数列
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f741bb56c9c4e0faa595a7068e3e74a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
7 . 已知数列
满足
,
,则整数k的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5cad9aa4006c1d61d3634e24ce22a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7996240a220b12c384f9ad47421658.png)
您最近一年使用:0次
8 . 两数列
满足
,且对任意正整数n,
,则
为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955eacfe3cb040e0636493ec21a7cf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33462c88b75e4ad17d3b9063bb45696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f70d112328a702cb4eedc0fde407067.png)
您最近一年使用:0次
9 . 数列
满足:
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56c6ce06c1cd6542d0bb2bedaf66b8cf.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f590550c15a192f5d52ad25fab5f2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56c6ce06c1cd6542d0bb2bedaf66b8cf.png)
您最近一年使用:0次
10 . 数列
与
满足:
,若对任意正整数k,都有
,则实数t的最小值为_________ .
![](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/35f09d8a8293b55cf0e3792b369a18bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18d4a129010fca9617eb725eff5fc24.png)
您最近一年使用:0次