1 . 已知定义在
上的奇函数
,它的图象关于直线
对称.当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2209b6dac8e65cd27e193ac51a30cc00.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad05719025457903d1b5d5c7b99f97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18da1ecd1a83afc4544ee71f00c56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2209b6dac8e65cd27e193ac51a30cc00.png)
您最近一年使用:0次
2019-01-28更新
|
291次组卷
|
3卷引用:2018年全国高中数学联赛福建省预赛
2 . 设复数
满足
,则
的最大值为______ .(
为虚数单位,
为复数
的共轭复数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744751e1a9cb9eca0de477b177544ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c1033cde7c576802698283b56306a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
3 . 在
中,内角
、
、
所对的边分别是
、
、
.若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f774cd650f14c8f6e4fe0c6a432768bb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cb21ae875f36d52d0b6f82b0201d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f774cd650f14c8f6e4fe0c6a432768bb.png)
您最近一年使用:0次
4 . 将正偶数集合
从小到大按第
组有
个数进行分组:
,
,
,…,则2018位于第______ 组.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1465cf587bdc43adbb6819473b964383.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803446057e38b5376b31ebf8fc78d2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff7e39b335e3b5250b7f727e16a4a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4789f4442e5207a97cdd90ee524a16fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526f03f68ccfbcd1e7dd16f3af3fc5ec.png)
您最近一年使用:0次
5 . 已知二次函数
,其图像过点
,并与直线
有公共点.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6cab91f4e5f4cd1ca2e375932b3186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ce42d1347ca3b69024dd59abadb746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc239e33172e518c985b63a0e8196140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a76204d609c5cab5dddaa04f9dc9f4e.png)
您最近一年使用:0次
2011高三·福建·竞赛
6 . 已知
、
分别是椭圆
:
的左、右焦点,
、
在椭圆
上.若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623567de59e50e4066c20804e9168ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216a00ab257e6d6c8a0e4d1d908999c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d489ef12c21e6700a0549f12c75d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6dd70cb5c9f664098a391cd16047d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4bb759e583e95c92870aaa2c87e565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2011高三·福建·竞赛
7 . 已知定义在
上的函数
满足:(1)
;(2)当
时,
;(3)对任意的实数
、
均有
.则
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f98295488064a3861b77102dd20b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843b4c645de56270f5ea5285a8d107bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a62d05b375bf2ae5edeea9aaa482dbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15e5c054caf1de2a5018a5554547879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390557bf6c80429546ba1e896e79d173.png)
您最近一年使用:0次
2011高三·福建·竞赛
8 . 函数
的最大值为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e469032229802acbc96effe17cee851c.png)
您最近一年使用:0次