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题号:3534928
题型:选择题
难易度:较难
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image001.png)
与双曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image002.png)
交于
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image003.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image004.png)
两点,且
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image005.png)
中点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image006.png)
的横坐标为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image007.png)
,过
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image006.png)
且与直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image001.png)
垂直的直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image008.png)
过双曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/ec3e090b-efc4-4ca2-9f49-de94c6b04f94/paper.files/image009.png)
的右焦点,则双曲线的离心率为( )
题号:3534929
题型:选择题
难易度:较难
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】老王和小王父子俩玩一种类似于古代印度的“梵塔游戏”;有3个柱子甲、乙、丙,在甲柱上现有4个盘子,最上面的两个盘子大小相同,从第二个盘子往下大小不等,大的在下,小的在上(如图),把这4个盘子从甲柱全部移到乙柱游戏即结束,在移动过程中每次只能移动一个盘子,甲、乙、丙柱都可以利用,且3个柱子上的盘子始终保持小的盘子不能放在大的盘子之下,设游戏结束需要移动的最少次数为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image063.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image115.png)
( )
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image116.png)
题号:3534930
题型:选择题
难易度:较难
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】如图所示,网络纸上每个小格都是边长为1的正方形,粗线画出的是一个几何体的三视图,则该几何体的表面积为( )
![](http://static.zujuan.xkw.com/Upload/2017-04/03/66c55517-2a5f-4e7b-8820-cb12863b0bb0/paper.files/image001.png)
题号:3534931
题型:选择题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】在
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image082.png)
中,角
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image083.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image084.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image085.png)
的对边分别为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image067.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image068.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image086.png)
,已知
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image087.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image088.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image089.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image086.png)
边的长为( )
题号:3534932
题型:选择题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/c1337745-e727-447c-b550-bef16accf317/paper.files/image001.png)
,若
![](http://static.zujuan.xkw.com/Upload/2017-04/03/c1337745-e727-447c-b550-bef16accf317/paper.files/image002.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/c1337745-e727-447c-b550-bef16accf317/paper.files/image003.png)
都是从
![](http://static.zujuan.xkw.com/Upload/2017-04/03/c1337745-e727-447c-b550-bef16accf317/paper.files/image004.png)
任取的一个数,则满足
![](http://static.zujuan.xkw.com/Upload/2017-04/03/c1337745-e727-447c-b550-bef16accf317/paper.files/image005.png)
时的概率( )
题号:3534933
题型:选择题
难易度:较难
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image001.png)
图象上的某点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image002.png)
可以由函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image003.png)
上的某点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image004.png)
向左平移
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image005.png)
个单位长度得到,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/561ed1c8-8173-4784-a60b-bc800e25b22e/paper.files/image006.png)
的最小值为( )
题号:3534934
题型:选择题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】在《九章算术》中有一个古典名题“两鼠穿墙”问题:今有垣厚五尺,两鼠对穿.大鼠日一尺,小鼠也日一尺.大鼠日自倍,小鼠日自半,问何日相逢?大意是有厚墙五尺,两只老鼠从墙的两边分别打洞穿墙.大老鼠第一天进一尺,以后每天加倍;小老鼠第一天也进一尺,以后每天减半.问几天后两鼠相遇?( )
题号:3534935
题型:选择题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】根据如图的程序框图,当输入
![](http://static.zujuan.xkw.com/Upload/2017-04/03/5bdd40f0-a2cc-470c-a42a-014c1ce24078/paper.files/image001.png)
为2017时,输出的
![](http://static.zujuan.xkw.com/Upload/2017-04/03/5bdd40f0-a2cc-470c-a42a-014c1ce24078/paper.files/image002.png)
为28,则判断框中的条件可以是( )
![](http://static.zujuan.xkw.com/Upload/2017-04/03/5bdd40f0-a2cc-470c-a42a-014c1ce24078/paper.files/image003.png)
题号:3534936
题型:选择题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】若
![](http://static.zujuan.xkw.com/Upload/2017-04/03/627430dc-562d-4e89-b8d1-db37233a27e2/paper.files/image001.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/627430dc-562d-4e89-b8d1-db37233a27e2/paper.files/image002.png)
,则( )
题号:3534937
题型:选择题
难易度:较易
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image014.png)
在角
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image015.png)
终边的延长线上,且
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image016.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image014.png)
的坐标为( )
题号:3534938
题型:选择题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
题号:4880478
题型:选择题
难易度:较易
日期:2017-09-04
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
题号:3534924
题型:填空题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/6c24dd1d-4240-4389-95f8-8cb2ccc80897/paper.files/image001.png)
,无论
![](http://static.zujuan.xkw.com/Upload/2017-04/03/6c24dd1d-4240-4389-95f8-8cb2ccc80897/paper.files/image002.png)
取何值,函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/6c24dd1d-4240-4389-95f8-8cb2ccc80897/paper.files/image003.png)
在区间
![](http://static.zujuan.xkw.com/Upload/2017-04/03/6c24dd1d-4240-4389-95f8-8cb2ccc80897/paper.files/image004.png)
总是不单调.则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/6c24dd1d-4240-4389-95f8-8cb2ccc80897/paper.files/image005.png)
的取值范围是__________.
题号:3534925
题型:填空题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知正四棱锥
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image158.png)
,底面边长为4,高为2,则该四棱锥外接球的体积为__________.
题号:3534926
题型:填空题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】抛物线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image150.png)
的准线与圆
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image151.png)
相切,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image152.png)
=__________.
题号:3534927
题型:填空题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】设向量
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image134.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image135.png)
与
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image136.png)
的夹角为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image137.png)
且
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image138.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image135.png)
的坐标为__________.
题号:3534917
题型:解答题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】选修4-5:不等式选讲
已知函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image001.png)
.
(1)当
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image002.png)
时,求不等式
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image003.png)
的解集;
(2)设函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image004.png)
.当
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image005.png)
时,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image006.png)
,求
![](http://static.zujuan.xkw.com/Upload/2017-04/03/3337b045-333d-4f68-9777-5cd2f6688066/paper.files/image007.png)
的取值范围.
题号:3534918
题型:解答题
难易度:一般
日期:2017-04-03
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】选修4-4:坐标系与参数方程
在平面直角坐标系
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image001.png)
中,曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image002.png)
和
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image003.png)
的参数方程分别是
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image004.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image005.png)
是参数)和
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image006.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image007.png)
为参数).以原点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image008.png)
为极点,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image009.png)
轴的正半轴为极轴建立极坐标系.
(1)求曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image002.png)
的普通方程和曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image003.png)
的极坐标方程;
(2)射线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image010.png)
与曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image002.png)
的交点为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image008.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image011.png)
,与曲线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image003.png)
的交点为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image008.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image012.png)
,求
![](http://static.zujuan.xkw.com/Upload/2017-04/03/85a872fe-0627-4d11-8e68-7644b8d637b5/paper.files/image013.png)
的最大值.
题号:3534919
题型:解答题
难易度:较难
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image304.png)
在
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image305.png)
处的切线与直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image306.png)
垂直.
(1)求函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image307.png)
(
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image308.png)
为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image173.png)
的导函数)的单调递增区间;
(2)记函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image309.png)
,设
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image310.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image311.png)
是函数
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image312.png)
的两个极值点,若
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image313.png)
,证明:
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image314.png)
.
题号:3534920
题型:解答题
难易度:较难
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知椭圆
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image272.png)
的离心率为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image273.png)
,短轴长为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image274.png)
.
(1)求椭圆
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image085.png)
的标准方程;
(2)若直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image275.png)
与椭圆有且只有一个公共点,且直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image275.png)
与直线
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image276.png)
和
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image277.png)
分别交于
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image014.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image278.png)
两点,试探究以线段
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image279.png)
为直径的圆是否恒过定点,若存在求出该点,若不存在,说明理由.
题号:3534921
题型:解答题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】某中学高二年级开设五门大学先修课程,其中属于数学学科的有两门,分别是线性代数和微积分,其余三门分别为大学物理,商务英语以及文学写作,年级要求每名学生只能选修其中一科,该校高二年级600名学生各科选课人数统计如下表:
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image248.png)
其中选修数学学科的人数所占频率为0.6,为了了解学生成绩与选课情况之间的关系,用分层抽样的方法从这600名学生中抽取10人进行分析.
(1)求
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image032.png)
和
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image033.png)
的取值以及抽取的10人中选修商务英语的学生人数;
(2)选出的10名学生中恰好包含甲乙两名同学,其中甲同学选修的是线性代数,乙同学选修的是大学物理,现从线性代数和大学物理两个学科中随机抽取3人,求这3人中正好有甲乙两名同学的概率.
题号:3534922
题型:解答题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image202.png)
中,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image083.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image084.png)
分别为边
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image203.png)
上的两个三等分点,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image204.png)
为底边
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image203.png)
上的高,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image205.png)
,如图1.将
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image206.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image207.png)
分别沿
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image208.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image209.png)
折起,使得
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image210.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image053.png)
重合于点
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image085.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image121.png)
中点为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image014.png)
,如图2.
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image211.png)
(1)求证:
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image212.png)
;
(2)若
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image213.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image214.png)
,求
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image215.png)
到平面
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image216.png)
的距离.
题号:3534923
题型:解答题
难易度:一般
日期:2017-04-02
来源:【全国百强校】2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷(带解析)
【题文】已知数列
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image180.png)
前
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image063.png)
项和为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image181.png)
,且满足
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image182.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image183.png)
.
(1)求数列
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image180.png)
的通项公式;
(2)令
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image184.png)
,
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image185.png)
为
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image186.png)
的前
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image063.png)
项和,求证:
![](http://static.zujuan.xkw.com/Upload/2017-04/03/39442570-72ba-4ad6-a52c-bf2dc884df06/paper.files/image187.png)
.