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1、2019 年湖南省普通高中学业水平考试模拟数学试题八分数一、选择题共10 小题，每题4 分，总分值40 分1、已知等差数列na的前 3 项分别为2，4，6，则数列na的第 4 项为A、7 B、8 C、10 D、12 2、如图是一个几何体的三视图，则该几何体为A、球B、圆柱C、圆台D、圆锥3、函数21 xxxf的零点个数是A、0 B、1 C、2 D、3 4、已知集合3,2,0,1xBA，假设2BA，则x的值为A、3 B、2 C、0 D、-1 5、已知直线12:1xyl，52:2xyl，则直线1l与2l的位置关系是A、重合B、垂直C、相交但不垂直D、平行6、以下坐标对应的点中，落在不等式01yx表
2、示的平面区域内的是A、0,0B、4,2C、4,1D、8,17、某班有50 名同学，将其编为1、2、3、50 号，并按编号从小到大平均分成5 组，现用系统抽样方法，从该班抽取5 名同学进行某项调查，假设第1 组抽取的学生编号为3，第二组抽取的学生编号为13，则第 4 组抽取的学生编号为A、14 B、23 C、33 D、43 8、如图，D 为等腰三角形ABC 底边 AB 的中点，则以下等式恒成立的是A、0CBCAB、0ABCDC、0CDCAD、0CBCD9、将函数xysin的图象向左平移3个单位长度，得到的图象对应的函数解析式为A、3sin xyB、3sin xyC、32sin xyD、32sin
3、 xyADBC10、如图，长方形的面积为2，将 100 颗豆子随机地撒在长方形内，其中恰好有60 颗豆子落在阴影部分内，则用随机模拟的方法可以估计图中阴影部分的面积为A、32B、54C、56D、34二、填空题共5 小题，每题4 分，总分值20 分11、比较大小：5log23log2填“”或“”12、已知圆422yax的圆心坐标为0,3，则实数a13、某程序框图如下图，假设输入的cba,值分别为3，4，5，则输出的y值为14、已知角的终边与单位圆的交点坐标为2321，则cos15、如图，A，B 两点在河的两岸，为了测量A、B 之间的距离，测量者在A 的同侧选定一点C，测出 A、C 之间的距离是1
4、00 米，105BAC，45ACB，则 A、B 两点之间的距离为米。(请学生注意：请将答案填写在答案方框内)一，选择题本大题共个小题，每题4 分，共 4分。题号10 答案二，填空题本大题共个小题，每题分，共分。11，；12，；13，；14，；15 开始cba,输入3cbayy输出结束A河B45C105文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2
5、G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2
6、A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q
7、6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6
8、Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10
9、A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W
10、4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7D6Z2G3 ZS8C1A10A2A2文档编码:CP2W4Q6Q7B5 HU9O7
11、D6Z2G3 ZS8C1A10A2A2解答题共5 小题，总分值40 分16、6 分已知函数6,2,xxfy的图象如图，根据图象写出：1函数xfy的最大值；2使1xf的x值。17、8 分一批食品，每袋的标准重量是50g，为了了解这批食品的实际重量情况，从中随机抽取10 袋食品，称出各袋的重量单位：g，并得到其茎叶图如图，1求这 10 袋食品重量的众数，并估计这批食品实际重量的平均数；2假设某袋食品的实际重量小于或等于47g，则视为不合格产品，试估计这批食品重量的合格率。18、8 分如图，在四棱柱1111DCBAABCD中，DD1底面 ABCD，底面 ABCD 是正方形，且 AB=1，21DD1求
12、直线BD1与平面 ABCD 所成角的大小；2求证：AC 平面DDBB11450011025669D1D1A1B1CBCA1121256yx02文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3
13、U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X
14、3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5
15、X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O
16、5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4
17、O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J
18、4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1
19、J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B319、8 分已知向量Rxxbxa,1,cos,1,sin，1当4x时，求向量ba的坐标；2假设函数mbaxf2为奇函数，求实数m的值。20、10 分已知数列na的前n项和aSnn2a为常数，Nn1求1a，2a，3a；2假设数列na为等比数列，求常数a的值及na；3对于 2中的na，记34112nnaanf，假设0nf对任意的正整数n恒成立，求实数的取值范围。文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B
20、3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2
21、B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q
22、2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4
23、Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A
24、4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1
25、A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C
26、1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B32019 年湖南省普通高中学业水平考试模拟数学试题八参考答案一、选择题每题4 分，总分值40 分 题号 1 2 3 4 5 6 7 8 9 10 二、答案 B D C B D A C B A C 二、填空题每题4 分，总分值20 分 11；1
27、2 3；13 4；14 2 1；15 2100 三、解答题总分值40 分16解：1由图象可知，函数)(xfy的最大值为2；,3 分2由图象可知，使1)(xf 的 x 值为-1 或 5,6 分 17解：1这 10 袋食品重量的众数为 50g，,2 分 因为这 10 袋食品重量的平均数为4910 52 515150505049464645g，所以可以估计这批食品实际重量的平均数为49g；,4 分 2因为这10 袋食品中实际重量小于或等于47g 的有 3 袋，所以可以估计这批食品重量的不合格率为103，故可以估计这批食品重量的合格率为10 7 8 分 18 1解：因为D1D 面 ABCD，所以 BD
28、 为直线 B D1 在平面 ABCD 内的射影，所以 D1BD 为直线 D1B 与平面 ABCD 所成的角，,2 分又因为 AB=1，所以 BD=2，在 RtD1DB 中，1tan11BD D DBDD，所以 D1BD=45 o，所以直线D1B 与平面 ABCD 所成的角为45o；4 分 2证明：因为D1D面 ABCD，AC 在平面 ABCD 内，所以 D1D AC，又底面 ABCD 为正方形，所以 ACBD，,6 分 因为 BD 与 D1D 是平面 BB1D1D 内的两条相交直线，所以 AC 平面 BB1D1D,8 分19解：1因为 a=xsin，1，b=xcos，1，4 文档编码:CP1J
29、4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1
30、J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP
31、1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:C
32、P1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:
33、CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码
34、:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编
35、码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3x，所以 a+b)2,2()2,cos(sinxx；,4 分2 因为 a+b)2,cos(
36、sinxx，所以 mxmxxxf52sin4)cos(sin)(2，,6 分 因为)(xf 为奇函数，所以)()(xfxf，即 mxmx52sin5)2sin(，解得 5m,8 分 注：由)(xf 为奇函数，得0)0(f，解得 5m 同样给分20解：1211aSa，,1 分 由 212aaS，得 22a，,2 分 由 3213aaaS，得 43a；,3 分 2因为 21aa，当 2n 时，112nnnnSSa，又na 为等比数列，所以 11a，即 12a，得 1a，,5 分 故 12nna；,6 分 3因为 12nna，所以 3242)(2nnnf，,7 分 令 nt2，则 2t，34)2(3
37、4)(22tttnf，设 34)2()(2ttg，当 0时，03)(nf 恒成立，,8 分 当 0时，34)2()(2ttg 对应的点在开口向上的抛物线上，所以0)(nf 不可能恒成立，,9 分当 0时，34)2()(2ttg 在 2t 时有最大值34，所以要使0)(nf 对任意的正整数n 恒成立，只需034，即 4 3，此时 04 3，综上实数的取值范围为04 3,10 分文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J1
38、0O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J
39、10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7
40、J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M
41、7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10
42、M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ1
43、0M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3文档编码:CP1J4O5X3U9 HJ10M7J10O2X10 ZE9C1A4Q2B3