2004高三·四川·竞赛
1 . 已知
对任意整数
都有
.若
,则
=.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558a2ecdce526b2da399693537426986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96d08613593952267fb33f20fbd6084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35601a607f7f066559efea35b15baec7.png)
A.2002 | B.2003 | C.2004 | D.2005 |
您最近一年使用:0次
2004高三·四川·竞赛
2 . 不等式
的解集为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbab9f363673a1c63b371c48d9eee2bf.png)
您最近一年使用:0次
2004高三·四川·竞赛
3 . 已知椭圆
,动圆
,其中
.若
是椭圆
上的点,
是动圆
上的点,且使直线
与椭圆
和动圆
均相切,求
两点的距离
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e7b41cb90acb1284cde8dcde931150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d4e5db529e561f677fca17fb940059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997d9d9ae2b5a069f67ca91268c534b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2004高三·四川·竞赛
4 . 在母线长为
的圆锥中,体积最大的那一个的底面圆的半径为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2004高三·四川·竞赛
5 . 如图,
分别是锐角
的外心和垂心,
是边
的中点,由
向
及其外角平分线作垂线,垂足分别为
.证明:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250df1294aba48810b945e38c395a178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5b88ec996d2d117987e7303cefe4ad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/4f402099-36d4-43ae-8763-22162377a074.png?resizew=194)
您最近一年使用:0次