2015全国卷1数学试卷及答案(文科).pdf
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1、 2015年普通高等学校招生全国统一考试文科数学全国卷-1-绝密启封并使用完毕前一.选择题:本大题共12 小题,每题 5 分。1、已知集合32,6,8,10,12,14Ax xnnNB,则集合AB中的元素个数为A 5 B4 C 3 D2 2、已知点(0,1),(3,2)AB,向量(4,3)AC,则向量BCA(7,4)B(7,4)C(1,4)D(1,4)3、已知复数z满足(1)1zii,则zA2iB2i C2iD2i4、如果 3 个正数可作为一个直角三角形三条边的边长,则称这3 个数为一组勾股数,从1,2,3,4,5中任取 3 个不同的数,则这3 个数构成一组勾股数的概率为A310B15 C11
2、0D1205、已知椭圆E 的中心为坐标原点,离心率为12,E 的右焦点与抛物线2:8Cyx的焦点重合,,A B是 C 的准线与E 的两个交点,则ABA3B6 C9 D126、九章算术是我国古代内容极为丰富的数学名著,书中有如下问题:“今有委米依垣内角,下周八尺,高五尺,问”积及为米几何?”其意思为:“在屋内墙角处堆放米如图,米堆为一个圆锥的四分之一,米堆底部的弧长为8 尺,米堆的高为5 尺,米堆的体积和堆放的米各位多少?”已知 1 斛米的体积约为立方尺,圆周率约为3,估算出堆放的米有A14斛B22斛C36斛 D66斛7、已知na是公差为 1 的等差数列,nS为na的前n项和,假设844SS,则
3、10aA172B192C10 D128、函数()cos()fxx的部分图像如下图,则()fx的单调递减区间为A13(,),44kkkZB13(2,2),44kkkZC13(,),44kkkZD13(2,2),44kkkZ9、执行右面的程序框图,如果输入的0.01t,则输出的nA5B6C10D12 2015年普通高等学校招生全国统一考试文科数学全国卷-2-10、已知函数1222,1()log(1),1xxf xxx,且()3f a,则(6)faA47 B54C34D1411、圆柱被一个平面截去一部分后与半球半径为r组成一个几何体,该几何体的三视图中的正视图和俯视图如下图,假设该几何体的外表积为1
4、620,则r()A1B2C4D812、设函数()yf x的图像与2x ay的图像关于直线yx对称,且(2)(4)1ff,则a()(A)1B1 C2 D4第卷二、填空题:本大题共4 小题,每题 5 分13、数列na中112,2,nnnaaaS为na的前 n 项和,假设126nS,则n.14.已知函数31fxaxx的图像在点1,1f的处的切线过点2,7,则a.15.假设 x,y 满足约束条件20210220 xyxyxy,则 z=3x+y 的最大值为16.已知P是双曲线22:18yCx的右焦点,P 是 C 左支上一点,0,66A,当APF周长最小时,该三角形的面积为三、解答题17.本小题总分值12
5、 分已知,a b c分别是ABC内角,A B C的对边,2sin2sinsinBAC.I假设ab,求cos;B文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9
6、F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N
7、6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:
8、CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S
9、5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8
10、 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8
11、T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6文档编码:CN6Q5S5D10V8 HM4U8T5T2X6 ZN1M9F9Z10N6 2015年普通高等学校招生全国统一考试文科数学全国卷-3
12、-II假设90B,且2,a求ABC的面积.18.本小题总分值12 分如图四边形ABCD 为菱形,G 为 AC 与 BD 交点,BEABCD平面,I证明:平面AEC平面BED;II假设120ABC,,AEEC三棱锥EACD的体积为63,求该三棱锥的侧面积.19.本小题总分值12 分某公司为确定下一年度投入某种产品的宣传费,需了解年宣传费x单位:千元对年销售量单位:t和年利润z单位:千元的影响,对近8 年的宣传费ix,和年销售量1,2,3,8iy i的数据作了初步处理,得到下面的散点图及一些统计量的值.I根据散点图判断,yabx与ycdx,哪一个宜作为年销售量y 关于年宣传费x 的回归方程类型给出
13、判断即可,不必说明理由;II根据 I的判断结果及表中数据,建立y 关于 x 的回归方程;III 已知这种产品的年利润z 与 x,y 的关系为0.2zyx,根据 II的结果答复以下问题:i当年宣传费90 x时,年销售量及年利润的预报值时多少?ii 当年宣传费x为何值时,年利润的预报值最大?附:对于一组数据u1 v1,u2 v2.un vn,其回归线 v=u 的斜率和截距的最文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 Z
14、Y3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编
15、码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6
16、 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1
17、 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文
18、档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8
19、X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10
20、X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3 2015年普通高等学校招生全国统一考试文科数学全国卷-4-小二乘估计分别为:20 本小题总分值12 分已知过点1,0A且斜率为k 的直线 l 与圆 C:22231xy交于 M,N 两点.I求 k 的取值范围;II12OMON,其中 O 为坐标原点,求MN.21.本小题总分值12 分设函数2lnxfxeax.I讨论fx的导函数fx的零点的个数;II证明:当0a时22lnfxaaa.请考生在22、23、24 题中任选一题作答,如果多做,则按所做的第一题计分,作答时请写清题号22.本小题总
21、分值10 分选修4-1:几何证明选讲如图 AB 是圆 O 直径,AC 是圆 O 切线,BC 交圆 O 与点 E.I假设 D 为 AC 中点,求证:DE 是圆 O 切线;II假设3OACE,求ACB的大小.23.本小题总分值10 分选修4-4:坐标系与参数方程在直角坐标系xOy中,直线1:2Cx,圆222:121Cxy,以坐标原点为极点,x 轴正半轴为极轴建立极坐标系.I求12,C C的极坐标方程.II假设直线3C的极坐标方程为R4,设23,CC的交点为,M N,求2C MN的面积.24.本小题总分值10 分选修4-5:不等式证明选讲已知函数12,0fxxxa a.I当1a时求不等式1fx的解集
22、;II假设fx图像与 x 轴围成的三角形面积大于6,求 a 的取值范围.文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 H
23、E5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 Z
24、Y3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编
25、码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6 HE5F6P5E10X1 ZY3T3Q7A5D3文档编码:CK4W3K3U8X6
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