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1、东北三省三校2015年高三第一次联合模拟考试理科数学试卷本试卷分第卷(选择题)和第卷(非选择题)两部分,共150分,考试时间120分钟。考试结束后,将本试卷和答题卡一并交回。注意事项:1答题前,考生务必先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内。2选择题必须使用2b铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。3请按照题号顺序在各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题卷上答题无效。4作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。5保持卡面清洁,不要折叠,不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。第

2、卷(选择题 共60分)一、选择题(本大题共12小题,每小题5分,共60分在每小题给出的四个选项中,只有一项是符合题目要求的)1、已知集合,则( )a b c d2、复数( )a b c d3、点到抛物线准线的距离为,则的值为( )a b c或 d或4、设是公差不为零的等差数列的前项和,且,若,则当最大时,( )a b c d5、执行如图所示的程序框图,要使输出的值小于,则输入的值不能是下面的( )a bc d6、下列命题中正确命题的个数是( )对于命题,使得,则,均有是的必要不充分条件,则是的充分不必要条件命题“若,则”的逆否命题为真命题“”是“直线与直线垂直”的充要条件a个 b个 c个 d个

3、7、如图,网格纸上小正方形的边长为,若粗线画出的是某几何体的三视图,则此几何体的体积为( )a b c d8、设双曲线的一个焦点为,虚轴的一个端点为,焦点到一条渐近线的距离为,若,则双曲线离心率的取值范围是( )a b c d9、不等式组表示的点集记为,不等式组表示的点集记为,在中任取一点,则的概率为( )a b c d10、设二项式()展开式的二项式系数和与各项系数和分别为,则( )a b c d11、已知数列满足,若数列的最小项为,则的值为( )a b c d12、已知函数,若函数有且只有两个零点,则的取值范围为( )a b c d二、填空题(本大题共4小题,每小题5分,共20分)13、向

4、量,满足,则向量与的夹角为 14、三棱柱各顶点都在一个球面上,侧棱与底面垂直,则这个球的表面积为 15、某校高一开设4门选修课,有4名同学,每人只选一门,恰有2门课程没有同学选修,共有 种不同选课方案(用数字作答)16、已知函数()的图象关于直线对称,则 三、解答题(本大题共6小题,共70分解答应写出文字说明、证明过程或演算步骤)17、(本小题满分12分)已知的面积为,且满足,设和的夹角为求的取值范围;求函数的取值范围18、(本小题满分12分)为调查市民对汽车品牌的认可度,在秋季车展上,从有意购车的500名市民中,随机抽样100名市民,按年龄情况进行统计的频率分布表1和频率分布直方图2频率分布

5、表中的位置应填什么数?并补全频率分布直方图,再根据频率分布直方图估计这500名市民的平均年龄;在抽出的100名市民中,按分层抽样法抽取20人参加宣传活动,从这20人中选取2名市民担任主要发言人,设这2名市民中“年龄低于30岁”的人数为,求的分布列及数学期望19、(本小题满分12分)如图,四棱锥的底面是边长为1的正方形,底面,、分别为、的中点求证:平面;若,试问在线段上是否存在点,使得二面角的余弦值为?若存在,确定点的位置;若不存在,请说明理由20、(本小题满分12分)已知椭圆()的左、右焦点为、,点在椭圆上,且与轴垂直求椭圆的方程;过作直线与椭圆交于另外一点,求面积的最大值21、(本小题满分1

6、2分)已知是实常数,函数若曲线在处的切线过点,求实数的值;若有两个极值点,(),求证:;求证:请考生在第22、23、24三题中任选一题作答,如果多做,则按所做的第一题计分22、(本小题满分10分)选修4-1:几何证明选讲如图,在中,以为直径的圆交于点,点是边的中点,连接交圆于点求证:是圆的切线;求证:23、(本小题满分10分)选修4-4:坐标系与参数方程已知曲线的极坐标方程是,以极点为平面直角坐标系的原点,极轴为轴的正半轴,建立平面直角坐标系,直线的参数方程是(为参数)求曲线的直角坐标方程与直线的普通方程;设点,若直线与曲线交于,两点,且,求实数的值24、(本小题满分10分)选修4-5:不等式

7、选讲设函数解不等式;若,使得,求实数的取值范围东北三省三校2015年三校第一次联合模拟考试理科数学试题参考答案1 选择题:1.b 2.c 3.c 4.b 5.a 6.b 7.c 8.a 9.a 10.c 11.b 12.c2 填空题:13. 900 14. 64 15. 84 16. 三解答题:17.解:()设中角的对边分别为,则由已知:, 分可得,所以: 分() 分,即当时,;当时,所以:函数的取值范围是 分年龄(岁)0.010.020.030.040.050.060.070.080.0920253035404550频率组距 18.解:(1)由表知:,分别填.补全频率分布直方图如下: 分 分

8、平均年龄估值为:(岁) 分(2)由表知:抽取的20人中,年龄低于30岁的有5人,的可能取值为0,1,2 分的分布列为012 分期望(人) 分19.证明: ()取中点, 连接, 在中, 为的中点, ,正方形中为中点, 故:为平行四边形 分又平面,平面 平面 分() 如图:以点为坐标原点建立空间直角坐标系: 由题易知平面的法向量为, 分假设存在满足条件:设 ,设平面的法向量为, 分 由已知:解得: 所以:满足条件的存在,是中点。 分20.(1)有已知:, 故椭圆方程为 分 (2)当斜率不存在时: 分 当斜率存在时:设其方程为: 由得由已知: 即: 分 到直线的距离: 分此时 综上所求:当斜率不存在

9、或斜率为零时:面积取最大值为 分21.解(1)由已知: ,切点 分 切线方程: ,把 代入得: 分 (2)()依题意: 有两个不等实根 设 则: 当 时: ,所以 是增函数,不符合题意; 分 当 时:由得: 列表如下:0极大值 依题意: ,解得: 综上所求: 得证; 分()由()知: 变化如下:0+0由表可知: 在 上为增函数,所以: 分又 , 故 由()知: , 设 ,则 成立,所以单调递减,故: ,也就是 综上所证: 成立. 分22.选修4-1: 几何证明选讲证明:()连结.点是的中点,点是的中点,.,. 分在和中,即.是圆上一点,是圆的切线. 分()延长交圆于点.,.点是的中点,.是圆的

10、切线,. 分,.是圆的切线,是圆的割线, 分23.选修4-4: 坐标系与参数方程 解:()由,得:,即,曲线的直角坐标方程为. 分由,得,即,直线的普通方程为. 分()将代入,得:,整理得:,由,即,解得:.设是上述方程的两实根,则, 分又直线过点,由上式及的几何意义得,解得:或,都符合,因此实数的值为或或. 分24.选修4-5: 不等式选讲解:()当时,即,解得,又,;当时,即,解得,又,;当时,即,解得,又,. 分综上,不等式的解集为. 分(),. 分,使得,整理得:,解得:,因此的取值范围是. 分6a*cz7h$dq8kqqfhvzfedswsyxty#&qa9wkxfyeq!djs#x

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29、rrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84

30、9gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa

31、5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa

32、5uxy7jnd6ywrrwwcvr9>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%madnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#q

33、cue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*adnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pd

34、x2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz8

35、49gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcu

36、e%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcu

37、e%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9

38、>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjq

39、v$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnugk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amyw

40、pazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qy

41、peh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%

42、mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8

43、!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mzadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!z

44、n%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcu

45、e%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwf

46、a5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum&g

47、txrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz84!z89amv$

48、ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpaza

49、dnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7j

50、nd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$u*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnugk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tn

51、gk8!z89amywpazadnu#kn&muwfa5uxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qypeh5pdx2zvkum>xrm6x4ngpp$vstt#&ksv*3tngk8!z89amywv*3tngk8!z89amywpazadnu#kn&muwfa5uxy7jnd6ywrrwwcvr9cpbk!zn%mz849gxgjqv$ue9wewz#qcue%&qyp

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