2020高考数学试卷全一

2020:12,5,60,1.z=1+i,|z2-2z|=A.0B.1C.2D.22.A={x|x2-40},B={x|2x+a0},AB={x|-2x1},a=A.-4B.-2C.2D.43.,.,A.5-14B.5-12C.5+14D.5+124.AC:y2=2px(p0),AC12,y9,p=A.2B.3C.6D.9315.yx(:C),20,(xi,yi)(i=1,2,,20):,1040,yxA.y=a+bxB.y=a+bx2C.y=a+bexD.y=a+blnx6.f(x)=x4-2x3(1,f(1))A.y=-2x-1B.y=-2x+1C.y=2x-3D.y=2x+17.f(x)=cos(+6)[-,,f(x)A.109B.76C.43D.328.(x+y2x)(x+y)5x3y3A.5B.10C.15D.209.(0,),3cos2-8cos=5,sin=A.53B.23C.13D.5910.A,B,CO,O1ABC.O14AB=BC=AC=OO1,OA.64B.48C.36D.3211.M:x2+y2-2x-2y-2=0,l:2x+y+2=0,Pl.PMPA,PB,A,B,|PM||AB|,ABA.2x-y-1=0B.2x+y-1=0C.2x-y+1=0D.2x+y+1=012.2a+log2a=4b+2log4b,A.a2bB.a2bC.ab2D.ab2:4,5,2013.x,y2x+y-20,x-y-10,y+1{,z=x+7y.14.a,b,|a+b|=1,|a-b|=.15.FC:x2a2-y2b2=1(a0,b0),AC,BC,BFx.AB3,C.16.,P-ABC,AC=1,AB=AD=3,ABAC,ABAD,CAE=30cosFCB=.41:7017~21,2223,():6017.(12){an}1,a1a2,a3.(1){an};(2)a1=1,{nan}n.18.(12),D,O,AE,AE=AD.ABC,PDO,PO=66DO.(1):PAPBC;(2)B-PC-E.19.(12),:;,;,,;,,,,.,,.12.(1);(2);(3).20.(12)A,BE:x2a2+y2=1(a1),GE,AGGB=8.Px=6,PAEC,PBED.(1)E;(2):CD.21.(12)f(x)=ex+ax2-x.(1)a=1,f(x);(2)x,f(x)12x3+1,a.():102223,22.[4-4:](10)xOy,C1x=coskt,y=sink{t(t).,x,C24cos-16sin+3=0.(1)k=1,C1?(2)k=4,C1C2.23.[4-5:](10)f(x)=|3x+1|-2|x-1|.(1)y=f(x);(2)f(x)f(x+1).51