1 . 如图,在钝角
中,
为钝角.设
的外角平分线与
过B和过C的高线分别交于点E,F,点M在线段EC上使得
,点N在线段BF上,使得
.证明:E,F,M,N四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fa3492cd1ac2b3f9278d3fe4cd4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fa3492cd1ac2b3f9278d3fe4cd4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd09bf3d43769b015a0a8d5b34cdefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37595daefab7761a896f29f785d253d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/bc6bb557-dd54-4bd6-8e9a-982625129d7d.png?resizew=217)
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名校
2 . 设平面向量
,
,
满足
,
,
,
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5196f84fd2a77d7ee14328cc26ab1ea.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524594bf0942ed86f56fc1eee120a81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c559d3aa4e5178683a408e5b7e7cbdde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5397753affa9833ade8daaba7748e3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bb9e1b4f7ba936949195aa99d6159a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cbb7c27eb8a2af305aa60c5fa2acb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f0e123349c41a4804013241a518860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5196f84fd2a77d7ee14328cc26ab1ea.png)
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2022-10-19更新
|
556次组卷
|
3卷引用:2022年7月浙江省高中数学联赛全真模拟六校联考试题
3 . 设
为整数,数列
定义为
,
,且对任意
都有
.试求所有的
,使得这个数列的每一项都是完全平方数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7bf0d4b73924e85ee5be8d6b170ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18aa1cccf2f341a7886ca7a22d63513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01fc0bf43fa7dcffcf1daebc1b0830c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bccd30b914efbdf1bcedfb60d63b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5575ee73675d9fb24280bb3d8d33361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db0b397225aafbf5906a2b928c8f2947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
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4 . 已知函数
,使得任取实数x,y,z都有
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445ca04eff5078b77fcb78234faf9207.png)
__________ .(其中
表示不大于x的最大整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a17e36b57a381a274173902e8a020d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5673732a290720249ab8011de7ca1c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445ca04eff5078b77fcb78234faf9207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e90b41a295a4b424cf37f5640430dc.png)
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5 . 若方程
仅有一个实根,则满足条件的k的最大值等于___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d2f4782619ae9824b5af276ba0ff9db.png)
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6 . 有_______ 组整数
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7deb1b206b4312834b68c937f652df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf262375a632f281952f4551ec4c63.png)
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7 . 有__________ 个不超过2020的正整数k,满足对任意的正整数n,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c9ff61597941cfa81be2ac40265667.png)
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8 .
中,
,
,作
交
于D.已知
,
,设S为
的面积,则
写成最简分数之后,分子分母之和为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff214d99784c6b23b7784bdaf3ed37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58557422677059ad3eebf806022b203c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e567a94f1d28a9c6693ba1ab89c8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909f43d5e0c217a24d0e71b91e6b9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42f33bcd36071743aab327dda456f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29315b499c8a01b20e1637b2add1dcbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff214d99784c6b23b7784bdaf3ed37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8023be0e5d4851396c3fb663811beb.png)
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9 . 满足
的所有正实数x的整数部分之和是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ced6125ae41187142764cb050df1cf.png)
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10 . 已知x,y,z是3个大于等于1的实数,那么
最小值写成最简分数后分子分母之和是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fcd69b1c9e63b91b0274cc02b80c91.png)
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