1、11.R,f(x)=sinx,g(x)=cosx,M=x|f(x)0,N=x|g(x)0,x|f(x)g(x)=0( )111111 (A)MN (B)MN (C)MN (D)MN2.A=x|x2-px+q=0,B=x|x2+px-q=0,A=2,AB= .3.x|x-(a+1)2/2|(a-1)2/2x2-3(a+1)x+2(3a+1)0(aR)AB,A1B,a.4.A=(x,y)|y2-x-1=0,B=(x,y)|4x2+2x-2y+5=0,C=(x,y)|y=kx+b.kb,(AB)C=?.21.A=x|-21x1a,B=y|y=2x+3,xA,C=z|z=x2,xA,C1B,a( )
2、(A)1/21a13 (B)-1/21a12 (C)21a13 (D)-11a1312.y= -x2-2x+3 .3.f(x)=x2-(a+3)x+3a (aR) a,y=f(x)(2p,p2),p; M=x|x-a|0,MN=R,a.31.,y=f(x),x+y=0,( ) (A)y=-f(x) (B)y=-f-1(x) (C)y=-f(-x) (D)y=-f-1(-x)2.(1,+)f(x)f(ex+1)=2ex+1,f(x)g(x)=2x-1,x .3.f(x)-6,6,0,3,3,6,x3,6,f(x)f(5)=3,f(6)=2,f(x).41.f(x),R,(-,0), (A)f(-
3、2)f(a2-2a+3) aR (B)f(-2)2f(a2-2a+3) aR (C)f(-2)f(a2-2a+3) aR (B)f(-2)2f(a2-2a+3) aR2.f(x)=log2(x2-4mx+4m2+m-1)R,xRf(x)22,m .3.f(x)=loga(a-ax),a1. f(x); f(x); f-1(x2-2)f(x).51.f(x)=f(4-x),xR,x22,f(x),a=f(1.10.5),b=f(0.51.1),c= f(log0.5XXXXXX2),abc( ) (A)abc (B)cba (C)bac (D)acb2.f(x)=loga(x-ka)+loga(
4、x2-a2) (a0a1)xa,k .23.y= (2+x)(3-x) A,y=lg(kx2+4x+k+3)B,AB,k.61.2log3x=1/4( )22 (A)x=1/9 (B)x= 3/3 (C)x= 3 (D)x=92.x,y(x-2)2+y2=3,y/x .3.y=lgx(x1),MNP,a,a+2,a+4,MNPS. S=f(a); S=f(a); S=f(a).71.y=x( )2 (A)y= x (B)y=x2/x (C)y=alogax (a0a1) (D)y=logaax (a0a1)2.y=(ex-1)/(ex+1) .3.y=f(x)=ax2+bx+cy,a+b=1,
5、(x,y),(x,y2+1)g(x)=ff(x). g(x);33 F(x)=g(x)-f(x),F(x)(-,- 2/2,- 2/2,0)()?81.y=loga(2-ax)0,1x,a( ) (A)(0,1) (B)(1,2) (C)(0,2) (D)2,+)2.f(x)xf(3+x)=f(3-x),f(x)=0, .3.a,a0a1,y=(x-1)/(ax-1)(xRx1/a),: x; y=x.91.22x+1-92x+4=0( ) (A)2 (B)-1 (C)1/2,2 (D)-1.22.x2-ax+2=0(0,3),a .3.x2a2x-2-7ax-1+3=02,a.4.f(x)=
6、log8x(xR+),f(x)=ff-1(log2x+4)101.lg2x+(lg7+lg5)lgx+lg7lg5=0,( ) (A)lg7lg5 (B)lg35 (C)35 (D)1/352.4x-2x+3=-12 .3.x2lgx-lgXXXXXX3+lgk=lg(2x2-5x+3),k.111.f(x)=log2(2x-1),f(2x)=f-1(x)( ) (A)1 (B)2 (C)3 (D)42.3x+4x+5x=6x( ) (A)1 (B)2 (C)3 (D)43.2log16x2+log0.25x=1.5 .4. 3tg2x+4tg2x+5tg2x=6tg2x5.|log2x|=|
7、log2(4x2)|-1121.x2-3ix-10i=0( ) (A), (B) (C), (D)2.x2+ax+b=03+4i,a= ,b= .3.(log2x-1)log32y-2(3log2x+a)log3y+log2x+1=0y,a,x,.131.algx-2=1/a(a0),x=( ) (A)1/10 (B)1 (C)10 (D)1002.(log4x)2-|log2x|-3=0 .3.a,xlg(x-1)+lg(3-x)=lg(a-x).141.f(x)3,75,f(x)-7,-3( ) (A)-5 (B)-5 (C)-5 (D)-52.,na1,a2,an,n,a:,a,a1,a
8、2,ana= .3.zC, z+a|z+1|-i=0(a 4 1)1541.I=1,2,3,10M=4,5,6,10,N=3,4,5,10,MN= (A)3 (B)2 (C)1,2 (D)7,8,9,102.f(x)=log2x,f(x2)(0,2( ) (A)(-,1 (B)(-,2 (C)(-,-1 (D)(-,-23.f(x)=|x|+|x-1|(-,0( ) (A) (B)1 (C)0 (D)4.My=f(x)x=aM( ) (A)0 (B)1 (C)2 (D)25.y=2x/(x-2)( ) (A)x (B)y (C) (D)y=x6.f(x)1,+)2,y=-f(-x)( ) (A
9、)(-,-12 (B)(-,-1-2 (C)(-,-22 (D)(-,-2-27.y=2x2+1(x0)( )555 (A)y=- log2x-1 (x2) (B)y= log2x-1 (x2)5 (C)y=- log2x-1 (x1) (B)y= log2x-1 (x1)58.f(x)= |x-1| ( ) (A)(1,2) (B)1,+) (C)(-,2) (D)(-,19.y=(x+1)-2( ) (A)-1x1 (B)|x|1 (C)x-2y1 (D)x-2,0y110.f(x),g(x),f(x)-g(x)=x2+2x,f(x)+g(x)=( ) (A)x2+2x (B)x2+2x-1 (C)x2-2x (D)-x2+2x11.y=x2+2(a-1)x+1(-,-2),a( ) (A)a 5 3 (B)a 5 2 (C)a 5 -2 (D)a 5 1/212.f(x)=x/(x-1),fg(x)=2x-1,y=g(x)( ) (A)x (B)x (C)(1,2) (D)(2,3/2)5513.y= x+2 - x-1 x 5 2( )55 (A)0y 5 1 (B)y 5 3 (C)y 5 3 (D)0y 5 214.y=(1/2)|x|