1 . 在多项式
的展开式中,含
项的系数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ce10b2cccfb211040957c828feb70f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c47357c8287f937f6e178a557af64f.png)
您最近一年使用:0次
2 . 复平面上两个点
,
分别对应两个复数
,
,它们满足下列两个条件:①
;②两点
,
连线的中点对应的复数为
,若
为坐标原点,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb8477bcc87b1401970171bf57b9ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c1fd680a5d355178273c6d6025eb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4158443ff179d0a71c63e762b502bb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb8477bcc87b1401970171bf57b9ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c1fd680a5d355178273c6d6025eb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c342b4049af5e211c8552e6f1d3526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91fcd06e9139169f341447eaf9617a4.png)
您最近一年使用:0次
解题方法
3 . 已知
,
分别是函数
和
图象上的动点,若对任意的
,都有
恒成立,则实数a的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc4d15605cedb4667a1bdcb00b2720b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9852d7433cf82fb187fcb796eb6d98d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6385e5564e8e04033873d9453615a24.png)
您最近一年使用:0次
解题方法
4 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a820047334d2482e3521f8b33a8b002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abeb1bbd1d18d3631152eff6b0fd0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次
解题方法
5 . 在
中,A,B,C的对边分别为a,b,c,若
,
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07abc09e1f0bf5eb87259e3381b3316a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0d83444a29f1618ed79ad89c1dbae9.png)
您最近一年使用:0次
解题方法
6 . 已知直线l:
与抛物线C:
交于P、Q两点,O为坐标原点,则三角形OPQ的面积等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e235d7dd12f948f5ffb2e5afddc95612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
您最近一年使用:0次
解题方法
7 . 若圆锥的表面积是
,且它的侧面展开图是一个半圆,则这个圆锥的底面直径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95265f94a8eb7f76b5db6875246a091d.png)
您最近一年使用:0次
解题方法
8 . 若函数
在区间
上存在单调递增区间,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ec00de86c218d7ec58367fada40887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 若函数
,则函数在
处的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93919368b444782513b3ab0de59d229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
您最近一年使用:0次
10 . 已知正四棱台的上下底边长分别为
,正四棱台体积为
,则此表面积为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8f2f2bcb8c77fb20b9d4f9f53255e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd442b32f40fe61def96c2fca0ad37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
您最近一年使用:0次