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1、20XX年全国各地高考文科数学试题分类汇编2：函数一、选择题1 （20XX年高考重庆卷（文）函数21log(2)yx的定义域为（）A(,2)B(2,)C(2,3)(3,)D(2,4)(4,)【答案】C 2（20XX年高考重庆卷（文）已知函数3()sin4(,)f xaxbxa bR,2(lg(log 10)5f,则(lg(lg 2)f（）A5B1C3D4【答案】C 3 （20XX年高考大纲卷（文）函数-121log10=fxxfxx的反函数（）A1021xxB1021xxC21xxRD210 xx【答案】A 4（20XX年高考辽宁卷（文）已知函数21ln1931,.lg 2lg2fxxxff则
2、（）A1B0C1D2【答案】D 5 （20XX 年高考天津卷（文）设函数22,()ln)3(xxg xxxxfe.若实数a,b满足()0,()0f ag b,则（）A()0()g af bB()0()f bg aC 0()()g af bD()()0f bg a【答案】A 6 （20XX年高考陕西卷（文）设全集为R,函数()1f xx 的定义域为M,则 C MR为（）A(-,1)B(1,+)C(,1D 1,)【答案】B 7 （20XX 年上海高考数学试题（文科）函数211fxxx的反函数为1fx,则12f的值是（）A3B3C12D12【答案】A 8 （20XX年高考湖北卷（文）x为实数,x 表
3、示不超过x的最大整数,则函数()f xxx 在R上为（）A奇函数B偶函数C增函数D周期函数【答案】D 9 （20XX 年高考四川卷（文）设函数()xf xexa(aR,e为自然对数的底数).若存在0,1b使()ff bb成立,则a的取值范围是（）A1,eB1,1 eC,1eeD0,1【答案】A 10（20XX年高考辽宁卷（文）已知函数222222,228.fxxaxag xxaxa设12max,min,max,Hxfxg xHxfxg xp q表示,p q中的较大值,min,p q表示,p q中的较小值,记1Hx得最小值为,A2Hx得最小值为B,则AB（）A2216aaB2216aaC16D1
4、6【答案】C 11（20XX年高考北京卷（文）下列函数中,既是偶函数又在区间(0,+)上单调递减的是（）A1yxBxyeC21yxDlg|yx【答案】C12（20XX年高考福建卷（文）函数)1ln()(2xxf的图象大致是（）ABCD【答案】A 13（20XX年高考浙江卷（文）已知 a.b.c R,函数f(x)=ax2+bx+c.若f(0)=f(4)f(1),则（）Aa0,4a+b=0 Ba0,2a+b=0 Da0,2a+b=0【答案】A 14（20XX 年高考山东卷（文）已知函数)(xf为奇函数,且当0 x时,xxxf1)(2,则文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY
5、10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编
6、码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2
7、 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9
8、ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文
9、档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6
10、Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y
11、9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8)1(f（）A2 B1 C0 D-2【答案】D 15（20XX年高考广东卷（文）函数lg(1)()1xf xx的定义域是（）A(1,)B 1,)C(1,1)(1,)D 1,1)(1,)【答案】C 16（20XX年高考陕西卷（文）设a,b,c均为不等于1 的正实数,则下列等式中恒成立的是（）A logloglogaccbabB
12、 loglologgaaababC()log?lgologaaabcbcD()loggogollaaabbcc【答案】B 17（20XX年高考山东卷（文）函数1()123xf xx的定义域为（）A(-3,0 B(-3,1 C(,3)(3,0D(,3)(【答案】A 18（20XX年高考天津卷（文）已知函数()f x 是定义在R上的偶函数,且在区间 0,)单调递增.若实数a满足212(log)(log)2(1)faffa,则a的取值范围是（）A 1,2B10,2C1,22D(0,2【答案】C 19（20XX年高考湖南（文）函数 f(x)=x 的图像与函数g(x)=x2-4x+4 的图像的交点个数为
13、_（）A0 B1 C2 D3【答案】C 20（20XX年高考课标 卷（文）已知函数22,0,()ln(1),0 xxxf xxx,若|()|f xax,则a的取值范围是（）A(,0B(,1C 2,1D 2,0【答案】D;21（20XX年高考陕西卷（文）设x 表示不大于x的最大整数,则对任意实数x,y,有（）A-x =-x Bx+12 =x C2x =2x D1 2xx【答案】D 22（20XX年高考安徽（文）函数()yf x的图像如图所示,在区间,a b上可找到(2)n n文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5
14、G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10
15、K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:
16、CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 H
17、R5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY
18、10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编
19、码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2
20、 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8个不同的数12,nx xx,使得1212()()()nnf xf xf xxxx,则n的取值范围为（）A2,3B2,3,4C3,4D3,4,5【答案】B 23（20XX年高考湖北卷（文）小明骑车上学,开始时匀速行驶,途中因交通堵塞停留了一段时间,后为了赶时间加快速度行驶.与以上事件吻合得最好的图象是【答案】C 24（20XX年 高 考 湖 南（文）已 知f(x)是 奇 函 数,g(x
21、)是 偶 函 数,且f(-1)+g(1)=2,f(1)+g(-1)=4,则 g(1)等于 _（）A 4 B3 C2 D1【答案】B 二、填空题25（20XX年高考安徽（文）定义在R上的函数()f x满足(1)2()f xf x.若当01x时.()(1)f xxx,距学校的距离距学校的距离距学校的距离A B C D 时间时间时间时间O O O O 距学校的距离文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y
22、6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8
23、U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P
24、2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B
25、4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9
26、B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G
27、3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K
28、7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8则当10 x时,()f x=_.【答案】(1)()2x xfx26（20XX年高考大纲卷（文）设21,3=fxxfx是以 为周期的函数，且当时，_.【答案】-1 27（20XX年高考北京卷（文）函数 f(x)=12log,12,1xx xx的值域为 _.【答案】(-,2)28（20XX年高考安徽（文）函数21ln(1)1yxx的定义域为 _.【答案】0,129（20XX年高考浙江卷（文）已知函数f(x)=x-1 若 f(a)=3,则实数 a=_.【答案】10 30（20XX年高考福建卷（文）已知函数
29、20,tan0,2)(3xxxxxf,则)4(ff_【答案】2.31（20XX年高考四川卷（文）lg5lg20的值是 _.【答案】1 32（20XX年上海高考数学试题（文科）方程91331xx的实数解为 _.【答案】3log 4三、解答题33（20XX 年高考江西卷（文）设函数1,0()1(1),11xxaaf xxaxa a 为 常数且 a(0,1).(1)当 a=12时,求 f(f(13);(2)若 x0满足 f(f(x0)=x0,但 f(x0)x0,则称 x0为 f(x)的二阶周期点,证明函数()f x有且仅有两个二阶周期点,并求二阶周期点x1,x2;(3)对于(2)中 x1,x2,设A
30、(x1,f(f(x1),B(x2,f(f(x2),C(a2,0),记ABC 的面积为文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5
31、J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T
32、9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y
33、6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8
34、U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P
35、2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B
36、4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8s(a),求 s(a)在区间 13,12 上的最大值和最小值.【答案】解:(1)当12a=时,121222(),()()2(1)333333ffff(2222221,01(),(1
37、)2)()1(),1(1)1(1),11(1)xxaaax axaaaff xxa axaaax aaxaa当20 xa时,由21xxa解得 x=0,由于 f(0)=0,故 x=0 不是 f(x)的二阶周期点;当2axa时由1()(1)axxaa解得21axaa2(,),aa因222211()1111aaafaaaaaaaaa故21axaa是 f(x)的二阶周期点;当21axaa时,由21()(1)xaxa解得12xa2(,1)a aa因1111()(1)2122faaaa故12xa不是 f(x)的二阶周期点;当211aax时,1(1)(1)xxaa解得211xaa2(1,1)aa因22221
38、111()(1)11111afaaaaaaaaa故211xaa是 f(x)的二阶周期点.因此,函数()f x有且仅有两个二阶周期点,121axaa,2211xaa.(3)由(2)得222211(,),(,)1111aaABaaaaaaaa则2322221(1)1(222)(),()212(1)aaa aaas as aaaaa因为 a 在13,12 内,故()0s a,则1 1()3 2s a 在区间，上单调递增，文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B
39、8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3
40、P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7
41、B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR
42、9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5
43、G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10
44、K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:
45、CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8故1 11111()3 2333220s a 在区间，上最小值为 s()=，最大值为 s()=34（20XX 年 高 考 安 徽（文）设 函 数22()(1)f xaxax,其 中0a,区 间|()0Ixf x.()求I的长度(注:区间(,)的长度定义为;()给定常数0,1k,当11kak时,求I长度的最小值.【答案】解:(1)令2()-10f xx aax（）解得10 x221axa2|01aIxxaI的长度212-1axxa(2)0,1k
46、则0112kak由(1)21aIa22210(1)aIa,则01a故I关于a在(1,1)k上单调递增,在(1,1)k上单调递减.1221-1-2211-kkIkkk22111kIk（）min21-22kIkk文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY1
47、0K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码
48、:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2
49、HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 Z
50、Y10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档编码:CR9B8U5J6Q2 HR5G3P2T9Y9 ZY10K7B4Y6P8文档