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1U={1234567}A={2457}B={345})()(BCACUU=()A.{16}B.{45}C.{123457}D.{12367}2.()A2()yxyxB.33()yxyxC2yx2()yxD.33yx2xyx3.AB,AB,ABCDS,ABS,ABS4.|02,|12AxxBxxAUB=A|0xxB|2xxC02xD|02xx5.)(xf3,101,3A0B0C0D06.2UU={1,2,23},A={|a-2|,2},C{0}aaA,aA-31B2C31D17.2()2(1)2fxxax4a33538.2|10,AxxmxARmA4mB4mC40mD40m9234yxx[0,]m,25[4]4mA4,0B3[]24C3[3]2D3[2)10.}|{},21|{axxBxxABAaA}2|{aaB}1|{aaC}1|{aaD}21|{aa11.M3N7MNA.5B.5C.5D.12.2(21)1yxax2]aA[23+B23]C[23+D23]13.2,12,4aaA9,1,5aaB,9BAa_____;14.{|230}UxNx*{|2,,15}AxxnnNn*{|31,,9}BxxnnNn,C={x|x30}[()]UCABC15.f(x)=4x2-4mx+1--2-2+.f(x)[12]16.y=(3-a)xR,a_____171036Axx29Bxx1BACRRCBA21axaxCBCa18.S=23,a|03,TxxaxZST=1P=ST,P19.22,1,3,3,21,1AaaBaaa3ABa20.12ABA1B21AB210AB10121.}01)2(,|{2xmxxxARB{xx}BAm1-5DBDDB6-10:DBCCC11-12BB13.-314.{3,5,11,17,23,29}15.[2149]16.2317136,ABxx3RCABxx6x,2xxBCR9xRCBA,2xx,63x9x2,BC912aa18.S=23,aST=121a1aS=3,11a|013,TxxxZ01TST=11a|013,TxxxZ23TST=1PS0,1,3TP01301031301319.3AB3B213a33,0,0,1,3,3,1,1aaAB3,1AB3AB213,1,aa3AB1a201xA()fxB()gx()fx=1kx()gx=2kx.1(1)4f114k5(4)2g254k()fx=1,(0)4xx()gx=54x(0)x62AxB10-xyY=()fx+(10)gx=51044xx010x22105152510,(),(010),444216txtyttt52tmax4y25104x=3.75A3.75B6.25421.RAx01)2(2xmx04)1(2m1.0)2(,04)2(21212xxmxxmm4