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题号:3645799
题型:选择题
难易度:较易
日期:2017-05-15
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】设
![](http://static.zujuan.xkw.com/Upload/2017-05/15/c53715aa-b3ac-4dfd-8669-bd2bbb6cc301/paper.files/image001.png)
是虚数单位,复数
![](http://static.zujuan.xkw.com/Upload/2017-05/15/c53715aa-b3ac-4dfd-8669-bd2bbb6cc301/paper.files/image002.png)
为纯虚数,则实数
![](http://static.zujuan.xkw.com/Upload/2017-05/15/c53715aa-b3ac-4dfd-8669-bd2bbb6cc301/paper.files/image003.png)
为( )
A.![](http://static.zujuan.xkw.com/Upload/2017-05/15/c53715aa-b3ac-4dfd-8669-bd2bbb6cc301/paper.files/image004.png) | B.0 | C.1 | D.2 |
题号:3915440
题型:选择题
难易度:较难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image165.png)
是定义在
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image197.png)
上的可导函数,且满足
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image198.png)
,则( )
题号:3915441
题型:选择题
难易度:困难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知过抛物线
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image169.png)
的焦点
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image108.png)
的直线与抛物线交于
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image054.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image055.png)
两点,且
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image170.png)
,抛物线的准线
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image109.png)
与
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image002.png)
轴交于点
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image053.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image171.png)
于点
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image172.png)
,若四边形
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image173.png)
的面积为
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image174.png)
,则准线
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image109.png)
的方程为( )
题号:3915442
题型:选择题
难易度:困难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image137.png)
与
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image138.png)
的图象有三个不同的公共点,其中
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image139.png)
为自然对数的底数,则实数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image011.png)
的取值范围为( )
题号:3915443
题型:选择题
难易度:困难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image130.png)
,则“
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image131.png)
”是“
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image132.png)
”的( )
A.充分不必要条件 | B.必要不充分条件 | C.充分必要条件 | D.既不充分也不必要条件 |
题号:3915446
题型:选择题
难易度:困难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】在
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image071.png)
中,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image072.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image073.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image074.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image075.png)
是斜边
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image076.png)
上的两个动点,且
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image077.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image078.png)
的取值范围为( )
题号:3915448
题型:选择题
难易度:一般
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image020.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image021.png)
,若对任意的
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image022.png)
总有
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image023.png)
恒成立,记
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image024.png)
的最小值为
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image025.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image025.png)
最大值为( )
题号:4790136
题型:选择题
难易度:一般
日期:2017-08-08
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知椭圆的左焦点为
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image109.png)
,有一小球
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image002.png)
从
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image109.png)
处以速度
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image110.png)
开始沿直线运动,经椭圆壁反射(无论经过几次反射速度大小始终保持不变,小球半径忽略不计),若小球第一次回到
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image109.png)
时,它所用的最长时间是最短时间的5倍,则椭圆的离心率为( )
题号:4790137
题型:选择题
难易度:一般
日期:2017-08-08
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】为了竖一块广告牌,要制造三角形支架,如图,要求
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image089.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image090.png)
的长度大于1米,且
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image024.png)
比
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image091.png)
长0.5米,为了稳固广告牌,要求
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image024.png)
越短越好,则
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image024.png)
最短为( )
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image092.png)
题号:4880513
题型:选择题
难易度:困难
日期:2017-09-04
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image114.png)
为直角坐标系的坐标原点,双曲线
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image128.png)
上有一点
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image129.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image130.png)
),点
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image097.png)
在
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image039.png)
轴上的射影恰好是双曲线
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image131.png)
的右焦点,过点
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image097.png)
作双曲线
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image131.png)
两条渐近线的平行线,与两条渐近线的交点分别为
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image132.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image133.png)
,若平行四边形
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image134.png)
的面积为1,则双曲线的标准方程是( )
题号:1963828
题型:填空题
难易度:一般
日期:2017-01-10
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】我国古代数学名著《张邱建算经》有“分钱问题”:今有与人钱,初一人与三钱,次一人与四钱,次一人与五钱,以次与之,转多一钱,与讫,还敛聚与均分之,人得一百钱,问人几何?意思是:将钱分给若干人,第一人给
![](http://static.zujuan.xkw.com/Upload/2017-05/20/d6234d4c-579e-4cc3-acb3-dc26ec89ec47/paper.files/image001.png)
钱,第二人给
![](http://static.zujuan.xkw.com/Upload/2017-05/20/d6234d4c-579e-4cc3-acb3-dc26ec89ec47/paper.files/image002.png)
钱,第三人给
![](http://static.zujuan.xkw.com/Upload/2017-05/20/d6234d4c-579e-4cc3-acb3-dc26ec89ec47/paper.files/image003.png)
钱,以此类推,每人比前一人多给
![](http://static.zujuan.xkw.com/Upload/2017-05/20/d6234d4c-579e-4cc3-acb3-dc26ec89ec47/paper.files/image004.png)
钱,分完后,再把钱收回平均分给各人,结果每人分得
![](http://static.zujuan.xkw.com/Upload/2017-05/20/d6234d4c-579e-4cc3-acb3-dc26ec89ec47/paper.files/image005.png)
钱,问有多少人?则题中的人数是__________.
题号:3915435
题型:填空题
难易度:一般
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】己知函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image282.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image283.png)
是常数,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image139.png)
是自然对数的底数,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image284.png)
)在区间
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image285.png)
内存在两个极值点,则实数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image283.png)
的取值范围是__________.
题号:4880929
题型:填空题
难易度:较易
日期:2017-09-02
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知两个平面向量
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image118.png)
满足
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image119.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image120.png)
,且
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image121.png)
与
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image122.png)
的夹角为
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image123.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-09/02/6223d2f2-2471-4d36-99cd-96bcd07bb8a4/paper.files/image124.png)
__________.
题号:3448114
题型:解答题
难易度:一般
日期:2017-03-30
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】在直角坐标系
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image331.png)
中,以原点
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image206.png)
为极点,
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image069.png)
轴正半轴为极轴建立极坐标系.若曲线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image109.png)
的极坐标方程为
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image332.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image079.png)
点的极坐标为
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image333.png)
,在平面直角坐标系中,直线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image334.png)
经过点
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image079.png)
,斜率为
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image082.png)
.
(1)写出曲线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image109.png)
的直角坐标方程和直线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image334.png)
的参数方程;
(2)设直线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image334.png)
与曲线
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image109.png)
相交于
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image261.png)
两点,求
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image335.png)
的值.
题号:3448117
题型:解答题
难易度:一般
日期:2017-03-30
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】函数
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image162.png)
在
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image133.png)
上的最大值为2.
(1)求实数
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image016.png)
的值;
(2)把函数
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image163.png)
的图象向右平移
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image164.png)
个单位,可得函数
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image165.png)
的图象,若
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image165.png)
在
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image166.png)
上为增函数,求
![](http://static.zujuan.xkw.com/Upload/2017-03/30/ad04ffc5-3bd6-4215-9aa7-4071d130dec9/paper.files/image167.png)
的最大值.
题号:3915428
题型:解答题
难易度:一般
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image545.png)
.
(1)求
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image546.png)
在
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image547.png)
上的最大值和最小值;
(2)设曲线
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image095.png)
与
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image002.png)
轴正半轴的交点为
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image052.png)
处的切线方程为
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image542.png)
,求证:对于任意的正实数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image002.png)
,都有
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image023.png)
.
题号:3915429
题型:解答题
难易度:困难
日期:2017-07-27
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image492.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image493.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image011.png)
为常数),函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image494.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image139.png)
为自然对数的底).
(1)讨论函数
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image165.png)
的极值点的个数;
(2)若不等式
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image023.png)
对
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image495.png)
恒成立,求实数的
![](http://static.zujuan.xkw.com/Upload/2017-07/27/ef01779d-4f9a-45dc-ba1a-1ca68ec8f450/paper.files/image011.png)
取值范围.
题号:4790128
题型:解答题
难易度:困难
日期:2017-08-08
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】已知椭圆
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image251.png)
的左、右焦点分别为
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image252.png)
,点
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image253.png)
在椭圆
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image004.png)
上.
(1)求椭圆
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image004.png)
的标准方程;
(2)是否存在斜率为2的直线
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image254.png)
,使得当直线
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image254.png)
与椭圆
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image004.png)
有两个不同交点
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image255.png)
时,能在直线
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image256.png)
上找到一点
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image257.png)
,在椭圆
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image004.png)
上找到一点
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image225.png)
,满足
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image258.png)
?若存在,求出直线
![](http://static.zujuan.xkw.com/Upload/2017-08/08/bfc4edd5-bb02-4678-89ef-72606bc07119/paper.files/image254.png)
的方程;若不存在,说明理由.
题号:4880503
题型:解答题
难易度:困难
日期:2017-09-04
来源:【全国百强校word】河北省武邑中学2017届高三下学期二模考试数学(文)试题
【题文】设函数
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image374.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image178.png)
=
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image375.png)
.
(Ⅰ)求函数
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image063.png)
的单调区间;
(Ⅱ)若函数
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image376.png)
有两个零点
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image377.png)
.
(1)求满足条件的最小正整数
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image328.png)
的值;
(2)求证:
![](http://static.zujuan.xkw.com/Upload/2017-09/04/b09e219e-a41b-4b60-bebb-e4a13f014c84/paper.files/image378.png)
.