搜索
1A{x|24}B{x|3x72x}A()A{x|x3}B{x|x2}C{x|23}D{x|x4}2A{1,3,5,7,9}B{0,3,6,9,12}A()A{3,5}B{3,6}C{3,7}D{3,9}3.A{x|x0}B{x|1x2}A()A{x|x1}B{x|x2}C{x|0x2}D{x|1x2}4.M?{}M}{}M()A1B2C3D45A{0,2a}B{1}A{0,1,2,4,16}a()A0B1C2D46S{x|2x10}T{x|3x50}S()A?B{x|x1/2}C{x|x5/3}D{x|1/2x5/3}7503025________8{1,3}{1,3,5}A________9A{x|x1}B{x|xa}ARa________10.A{4,2a1}B{a5,1a,9}A{9}a11A{1,3,5}B{1,21}A{1,2,3,5}xAB.12A{x|2axa3}B{x|x1x5}A?a13(10)3626,15,1364105501AB2C0D02A}33|{xxB},,|),{(22RyxxyyxC}0|{2xxD},01|{2Rxxxx3A()()ACBCUIUB()()ABACUIUCBAC()()ABBCUIUD()ABCUI4,,MabcABCABCABCD50,1,2,32UUCAAA3B5C7D86.121|2xyy1|,2xyyx33611,,,,0.524254Ryxxyyx,,0|,A0B1C2D37.}1,1{A}1|{mxxBABAmA1B1C11D110822(,)0,(,)0,,MxyxyNxyxyxRyRAMNMUBMNNUCMNMIDMNI9.9122yxyxA5,4B4,5C4,5D4,510.AABABA,BBABBAC)(BAA)(BADBCACBACUUU552511.{M5}M.1234|,|,xxxACbxaxARUU,______,ba13.{15},{4}AxxxBxaxa,AB,a.14.5543344_______________15.21,4,,1,AxBxABBIx67516.{|||6}AxZx1,2,3,3,4,5,6BC1()ABC2()AACBC17.2|60,|(2)()0MxxxNxxxaNMa18220,150AxxaxbBxxcx3,5AB3AB,,abc.19.22|190Axxaxa2|560Bxxx2|280Cxxx,ABI,ACIa20.321,3,32Sxxx1,21Ax,0ACSxx21.222{40},{2(1)10}AxxxBxxaxa,xR,ABBIa1C2DA0B(0,0)C0D210xx3ACC4Dabc5C0,1,3A32176.A123361,0.5242347D0m,BABAU0m0m1,BmABAU11111mm1,10m8AN00NM9D1594xyxxyy(5,4)(5,4)10.C114124,3ba()|34|UUACCAxxxaxb13.(,5](5,)14264x43x34x44334455xxx26x152,2,0ABBBAI224xxx1x16.5,4,3,2,1,0,1,2,3,4,5A13BCQ()ABC5,4,3,2,1,0,1,2,3,4,5A25,4,3,2,1,0,CB,1,2,3,4,5ACU()AACBC,1,2,3,4,517.26023xxx2,3Mi2a2NNMii3a2,3NNMiii2a3a2,NaNMa2318.3AB32150xcx32+3c+15=0.8c.3,5B.3,5AB3ABAB.3A.320xaxb.33,33.ab6ab=98c19.22|190Axxaxa2|560Bxxx2|280Cxxx,ABI,ACIa2,3B4,2CABI2,3A4ACI2A3A293190aa52a85aABACI2a1220.321,3,32Sxxx1,21Ax,0ACSxx0SCA0S1,3,0S1,3A632213320xxxx1x1221.222{40},{2(1)10}AxxxBxxaxa,xR,ABBIaABBBAI4,0A224(1)4(1)88aaa4880a1aBBA880a1a0BBA880a1aBBA4,04,0B1a1011aa121.B{x|x3}()BB2.A{1,3,5,7,9}B{0,3,6,9,12}AB3,9AB{3,9}D.D3.ABAB{x|x1}A.A4.MM{}M{}B.B5.AB{0,1,2a}AB{0,1,2,4,16}{a}{4,16}a4D.D6.D7.x(30-x)(25-x)(30-x)+x+(25-x)=50x=5.252045458.{1,3}A{1,3,5}A?{1,3,5}A5A{1,3}{1,3}4A4.{5}{1,5}{3,5}{1,3,5}49.A(1]B[a)ABRa1.a110.AB{9}9A2a199a5a3.a5A{4,9,25}B{04,9}AB{4,9}{9}a5a3B{22,9}a311.AB{1,2,3,5}B{1,21}1315.13x215xx2.x2B{1,2,3}AB{1,3}xB{1,2,5}AB{1,5}12.AB?(1)A?2aa3a3.(2)A?-a2.a{a|-a2a3}13.xyzxy626y4z13xyz21x12y8z1.88