1 . 设
是定义在
上的单调函数,若对任意的
,都有
,则不等式
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5b2d4f7abea66a63cef7a022d3312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1074e5765256f1c5224287fe634ca91.png)
您最近一年使用:0次
2019-01-28更新
|
595次组卷
|
4卷引用:2018年全国高中数学联赛湖北省预赛
2 . 设数列
满足:
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c612fb2fed7c255a981cff9013063f4f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b639f6207ace937863ad1c5edb4ef31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c612fb2fed7c255a981cff9013063f4f.png)
您最近一年使用:0次
2019-01-28更新
|
402次组卷
|
2卷引用:2018年全国高中数学联赛湖北省预赛
3 . 若对任意的
,不等式
恒成立,则实数
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd0f1e3e3b41948f1b3d287c4b0cb44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17c1d27421199b5a09c24e95b160a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 设集合
.若方程
至少有一个根
,则称该方程为“合格方程”.那么,合格方程的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63446d9ae9fdbdcf80a2fbaeabe828a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9569c69c6444fe7f58048da2f0736c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcf45c1228d917a80907cbb22b2cd33.png)
您最近一年使用:0次
2011高三·湖北·竞赛
5 . 已知
,满足集合
,则所有
构成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8732a99e5a04516ac0838350fd8f344b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2011高三·湖北·竞赛
6 . 满足方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba08f3f83a17762c69eaa54088bd4e0.png)
的实数对
的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba08f3f83a17762c69eaa54088bd4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5cf70f8cd5ea56d84f0ec00639c863a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
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7 . 已知数列
满足:
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc00c62f5dda3fb46d69c9f1a8027de4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983de2be935fe91d013e7e0cac54123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc00c62f5dda3fb46d69c9f1a8027de4.png)
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