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    (完整word版)高二理科数学选修2-2测试题及答案.pdf

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    (完整word版)高二理科数学选修2-2测试题及答案.pdf

    高二选修2-2 理科数学试卷第 I 卷(选择题,共 60 分)一、选择题(共12 小题,每小题5 分,共 60 分)1、复数i25的共轭复数是()A、2iB、2iC、i2D、i22、已知 f(x)=3x sinx,则(1)f=()A.31+cos1 B.31sin1+cos1 C.31sin1-cos1 D.sin1+cos1 3、设aR,函数xxfxeae的导函数为fx,且fx是奇函数,则a为()A0 B1 C2 D-1 4、定积分dxexx10)2(的值为()Ae2 Be Ce De25、利用数学归纳法证明不等式1121312n10,则必有()Af(0)f(2)2 f(1)Bf(0)f(2)2 f(1)Cf(0)f(2)2 f(1)D f(0)f(2)2 f(1)第卷(非选择题,共 90 分)二填空题(每小题5 分,共 20 分)13、设2,0,1()2,(1,2xxf xx x,则20()f x dx=14、若三角形内切圆半径为r,三边长为a,b,c则三角形的面积12Sr abc();利用类比思想:若四面体内切球半径为R,四个面的面积为124SSS3,S,;则四面体的体积V=15、若复数z213i,其中 i 是虚数单位,则|z|_.16、已知函数f(x)x32x2ax1 在区间(1,1)上恰有一个极值点,则实数a 的取值范围_三、解答题(本大题共70 分)17、(10 分)实数 m取怎样的值时,复数immmz)152(32是:(1)实数?(2)虚数?(3)纯虚数?18、(12 分)已知函数3()3fxxx.(1)求函数()fx在3 3,2上的最大值和最小值.(2)过点(2,6)P作曲线()yf x的切线,求此切线的方程.19、(12 分)在各项为正的数列na中,数列的前n项和nS满足nnnaaS121,求321,aaa;由猜想数列na的通项公式,并用数学归纳法证明你的猜想20、(12 分)已知函数32()fxxaxbxc在23x与1x时都取得极值(1)求,a b的值与函数()f x的单调区间(2)若对 1,2x,不等式2()f xc恒成立,求c 的取值范围21、(12 分)已知函数32()233.fxxx(1)求曲线()yf x在点2x处的切线方程;(2)若关于x的方程0fxm有三个不同的实根,求实数m的取值范围.22、(12分)已知函数2afxxx,lng xxx,其中0a文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8(1)若1x是函数h xfxg x的极值点,求实数a的值;(2)若对任意的12,1x xe,(e为自然对数的底数)都有1fx2g x成立,求实数a的取值范围参考答案1、D 2、B 3、D 4、A 5、D 6、A 7、B 8、A 9、B 10、C 11、B 12、C 13、5614、23413SS1R(S+S)15、1 16、1,7)17.解:(1)当01522mm,即3m或5m时,复数Z 为实数;(3 分)(2)当01522mm,即3m且5m时,复数 Z 为虚数;(7 分)(3)当03-m,01522且mm,即3m时,复数 Z 为纯虚数;(10 分)18.解:(I)()3(1)(1)fxxx,当 3,1)x或3(1,2x时,()0fx,3 3,1,1,2为函数()f x的单调增区间当(1,1)x时,()0fx,1,1为函数()f x的单调减区间又因为39(3)18,(1)2,(1)2,()28ffff,所以当3x时,min()18f x当1x时,max()2fx 6 分(II)设切点为3(,3)Q x xx,则所求切线方程为32(3)3(1)()yxxxxx由于切线过点(2,6)P,326(3)3(1)(2)xxxx,解得0 x或3x所以切线方程为3624(2)yxyx或即30 xy或24540 xy 12 分19.解:易求得23,12,1321aaa 2 分猜想)(1*Nnnnan 5 分证明:当1n时,1011a,命题成立假设kn时,1kkak成立,则1kn时,)1(21)1(211111kkkkkkkaaaaSSa文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8)111(21)1(2111kkkkaakkkaakk)1(2111,所以,012121kkaka,kkak11.即1kn时,命题成立.由知,*Nn时,1nnan.12 分20.解:(1)322(),()32f xxaxbxc fxxaxb由2124()0393fab,(1)320fab得1,22ab2()32(32)(1)fxxxxx,函数()fx的单调区间如下表:2(,)3232(,1)3(1,)()fx00()f x极大值极小值所以函数()f x的递增区间是2(,)3与(1,),递减区间是2(,1)3;6 分(2)321()2,1,22f xxxxc x,当23x时,222()327fc为极大值,而(2)2fc,则(2)2fc为最大值,要使2(),1,2f xcx恒成立,则只需要2(2)2cfc,得1,2cc或 12 分21 解:(1)2()66,(2)12,(2)7,fxxx ff2 分曲线()yf x在2x处的切线方程为712(2)yx,即12170 xy;4 分(2)记322()233,()666(1)g xxxmg xxxx x令()0,0gxx或 1.6 分则,(),()x g xg x的变化情况如下表x(,0)0(0,1)1(1,)()gx00()g x极大极小当0,()xg x有极大值3;1,()mxg x有极小值2m.10 分由()g x的简图知,当且仅当(0)0,(1)0gg即30,3220mmm时,函数()g x有三个不同零点,过点A可作三条不同切线.所以若过点A可作曲线()yf x的三条不同切线,m的范围是(3,2).12 分文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q822.解:(1)解法 1:22lnah xxxx,其定义域为0,2212ahxxx1x是函数h x的极值点,10h,即230a0a,3a经检验当3a时,1x是函数h x的极值点,3a解法 2:22lnah xxxx,其定义域为0,2212ahxxx令0hx,即22120axx,整理,得2220 xxa2180a,0hx的两个实根2111 84ax(舍去),2211 84ax,当x变化时,h x,hx的变化情况如下表:x20,x2x2,xhx0 h x极小值依题意,211814a,即23a,0a,3a(2)解:对任意的12,1x xe,都有1fx2g x成立等价于对任意的12,1x xe,都有mi nfxmaxg x当x1,e时,110gxx函数lng xxx在1e,上是增函数max1g xg ee2221xaxaafxxx,且1,xe,0a当01a且x1,e时,20 xaxafxx,函数2afxxx在 1,e上是增函数,2min11fxfa.文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8由21a1e,得ae,又01a,a不合题意当 1ae时,若1xa,则20 xaxafxx,若axe,则20 xaxafxx函数2afxxx在1,a上是减函数,在ae,上是增函数min2fxfaa.由2a1e,得a12e,又1ae,12eae当ae且x1,e时,20 xaxafxx,函数2afxxx在1e,上是减函数2minafxfeee.由2aee1e,得ae,又ae,ae综上所述,a的取值范围为1,2e文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8文档编码:CK9M10O1B9J6 HT8M7P5V10S2 ZE6Q10R8R6Q8

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