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1、房山区 2019 年高考第二次模拟试卷数学（理科）本试卷共 4 页，150 分。考试时间长120 分钟。考生务必将答案答在答题卡上，在试卷上作答无效。考试结束后，将答题卡交回。一、选择题：本大题共8 小题,每小题 5 分,共 40 分.在每小题列出的四个选项中,选出符合题目要求的一项.1.若 pq 是假命题，则A.pq 是假命题B.p q是假命题C.p 是假命题D.q 是假命题2.下列四个函数中,既是奇函数又在定义域上单调递增的是A.1yxB.tanyxC.3yxD.2logyx3.如图，,A B C D是 O 上的四个点，过点B 的切线与DC的延长线交于点E.若110BCD，则DBEA.75
2、B.70C.60 D.554.设平面向量(1,2),(2,)yab，若a/b，则2ab等于A.4B.5C.3 5D.4 55.已知,M N是不等式组1,1,10,6xyxyxy所表示的平面区域内的两个不同的点，则|MN的最大值是A.342B.17C.32D.1726.已知数列na的前n项和为nS,11a,12nnSa,则nSA.12nB.21nC.13nD.1(31)2nEODCBA7.一个几何体的三视图如图所示，则这个几何体的表面积为A918 2B.189 3C.183 2D.98.定义运算abcdxaxcyybxdy，称xaybcdxy为将点,x y映到点,x y的一次变换.若xy2p1q
3、xy把直线ykx上的各点映到这点本身，而把直线ymx上的各点映到这点关于原点对称的点.则,k m p q的值依次是A.1,2,3,3kmpqB.1,3,3,2kmpqC.2,3,3,1kmpqD.2,1,3,3kmpq二、填空题:本大题共6 小题,每小题 5 分,共 30 分.9.在复平面内，复数(2)ii对应的点的坐标为.10.直线l的参数方程为1 312xtyt（t 为参数），则直线l的斜率为.11.在 ABC 中，角 A，B，C 所对的边分别是a b c,.326abA,，则tanB.12.若21()nxx展开式中的二项式系数和为64，则n等于，该展开式中的常数项为.13.抛物线2:2C
4、 ypx的焦点坐标为1(,0)2F，则抛物线C的方程为，若点P在抛物线C上运动，点Q在直线50 xy上运动，则PQ的最小值等于.14.在数列na中，如果对任意的nN，都 有211nnnnaaaa（为常数），则称数列na为比等差数列，称为比公差现给出以下命题：若数列nF满足1212(3)nnnFFFFFn=1,=1,，则该数列不是比等差数列；若数列 na满足123nna，则数列na是比等差数列，且比公差0；336俯视图侧（左）视图正（主视图）文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7
5、U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1
6、文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:C
7、K9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M
8、4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9
9、HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10
10、B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8
11、 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1文档编码:CK9E10M4H5I9 HM7G10B2R4O8 ZB7I7U4H3V1等比数列一定是比等差数列，等差数列一定不是比等差数列；若na是等差数列，nb是等比数列，则数列nna b是比等差数列其中所有真命题的序号是.三、解答题:本大题共6 小题,共 80 分.解答应写出文字说明,演算步骤或证明过程.15.（本小题满分13 分）已知函数()sin()(0 0)f xx,的最小正周期为，且图象过点1(
12、,)6 2.（）求,的值；（）设()()()4g xf x f x，求函数()g x 的单调递增区间.16.（本小题满分14 分）如图,ABCD是正方形，DE平面ABCD，DEAF/，3DEDAAF.()求证：ACBE；()求二面角DBEF的余弦值；（）设点M是线段BD上一个动点，试确定点M的位置，使得/AM平面BEF，证明你的结论.17.（本小题满分13 分）小明从家到学校有两条路线，路线1 上有三个路口，各路口遇到红灯的概率均为12；路线 2 上有两个路口，各路口遇到红灯的概率依次为3 4,4 5（）若小明上学走路线1，求最多遇到1 次红灯的概率；（）若小明上学走路线2，求遇到红灯次数X的
13、数学期望；（）按照“平均遇到红灯次数越少为越好”的标准，请你帮助小明从上述两条路线中选择一条最好的上学路线，并说明理由FEDCBA文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C
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16、1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文
17、档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD
18、10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2
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20、()()xaf xxxa e（0a）.（）当1a时，求函数()fx的单调区间；（）当5x时，()fx取得极值.若5m，求函数()f x在,1m m上的最小值；求证：对任意12,2,1xx，都有12|()()|2f xf x.19.（本小题满分14 分）已知椭圆C：22221(0)xyabab的离心率为22，且过点(2,1)A直线22yxm交椭圆C于B,D（不与点A重合）两点（）求椭圆C的方程；（）ABD 的面积是否存在最大值？若存在，求出这个最大值；若不存在，请说明理由20.（本小题满分13 分）设3m，对于项数为m的有穷数列na，令kb为)(,21mkaaak中的最大值，称数列nb为na的“
21、创新数列”例如数列3，5，4，7 的创新数列为3，5，5，7考查自然数)3(,2,1mm的所有排列，将每种排列都视为一个有穷数列nc（）若5m，写出创新数列为3，5，5，5，5 的所有数列nc；（）是否存在数列nc的创新数列为等比数列？若存在，求出符合条件的创新数列；若不存在，请说明理由；（）是否存在数列nc，使它的创新数列为等差数列？若存在，求出所有符合条件的数列nc的个数；若不存在，请说明理由文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10
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26、T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码
27、:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C
28、2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1房山区 2019年高考第二次模拟考试参考答案数学（理科）2019.05 一、选择题：本大题共8 小题,每小题 5 分,共 40 分.1A2C 3B 4D 5B 6C7A 8B 二、填空题:本大题共6 小题,每小题 5 分,共 30 分.9.(1,2)10.23 11.24 12.6,1513.2922,4yx 14.三、解答题:本大题共6 小题,共 80 分.15（
29、本小题满分13 分）（）由最小正周期为可知22T，2分由1()62f得1sin()32，又0，333所以5362，5 分（）由（）知()sin(2)cos22f xxx所以()cos2sin2()cos2 sin 242g xxxxx1sin 42x9分解24222kxk得 (Z)2828kkxk12 分所以函数()g x的单调增区间为,(Z)2828kkk.13分16（本小题满分14 分）()证明：因为DE平面ABCD，所以ACDE.1 分因为ABCD是正方形，所以BDAC，所以AC平面BDE,3 分从而ACBE4 分zyxMFEDCBA文档编码:CD10C2Q2G10L7 HB9Y6C6I
30、2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG
31、4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M
32、5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编
33、码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10
34、C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G1
35、0L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB
36、9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1()解：因为DEDCDA,两两垂直，所以建立空间直角坐标系xyzD如图所示.5 分设3AD，可知1,3 AFDE.6 分则)0,0,0(D,(3,0,0)A，)1,0,3(F，)3,0,0(E，(3,3,0)B，(0,3,
37、0)C，所以)1,3,0(BF，)2,0,3(EF，7 分设平面BEF的法向量为n(,)x y z，则00BFEFnn，即023,03zxzy，令3z，则n)3,1,2(.8 分因为AC平面BDE，所以CA为平面BDE的法向量，(3,3,0)CA，所以147,cosCAnCAnCAn9 分因为二面角为锐角，所以二面角DBEF的余弦值为147.10 分()解：点M是线段BD上一个动点，设(,0)(03 2)M t tt.则(3,0)AMtt，因为/AM平面BEF，所以AM n0，11 分即0)3(2tt，解得2t.13 分此时，点M坐标为(2,2,0)，13BMBD，符合题意.14 分17（本小
38、题满分13 分）（）设走路线1 最多遇到 1 次红灯为A事件，则0312331111()=()()2222P ACC 2 分（）依题意，X的可能取值为0，1，2341(=0)=(1)(1)4520P X，34347(=1)=(1)(1)454520P X，343(=2)=455P X8 分随机变量X的分布列为：文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7
39、 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6
40、C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6
41、 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7
42、H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1
43、文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:C
44、D10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q
45、2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1X0 1 2 P 120720359 分173310122020520EX 10 分（）设选择路线1 遇到红灯次数为Y，则1(3,)2YB，所以13322EY12 分因为EXEY，所以选择路线1 上学最好13 分18（本小题满分13 分）（）211()()(21)(12)xxxaaafxxxa exex xa eaa 1 分当1a时，()(3)xfxx xe解()0fx得0 x或3x,解()0fx得30 x 2 分所以()f x单调增区间为(,3)和(
46、0,)，单调减区间为(3,0)3 分（）当5x时，()f x取得极值，所以1(5)(5)(512)0 xafa ea解得2a（经检验2a符合题意）4 分1()52xfxx xex(,5)5(5,0)0(0,)()fx+0-0+()f x所以函数()f x在,5，0递增，在5,0递减.5 分当51m时，()f x在,1m m单调递减，12min()(1)(3)mfxf mm me6 分当10m时01mm()f x在,0m单调递减，在0,1m单调递增，文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 Z
47、G4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1
48、M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档
49、编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD1
50、0C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G10L7 HB9Y6C6I2Y6 ZG4P7H1M5T1文档编码:CD10C2Q2G