福建省三明市三地三校2020-2021学年高二上学期联考协作卷数学试题

福建省三明市三地三校2020-2021学年高二上学期联考协作卷数学试题c若>则>22()4210p:x1y2且q:xy3p是的（q，）DP:nN,n2P）2nnN,n2nN,n2n．．．D．2n2nN,n2nN,n2n2n2P(x,y)F(4,0),F(4,0)xOyP）12xy22x2y2．11．D．19yxyx2222．19xy2）111214．．0，0，00．．42x2y2xy2211m2m）4m2xy2213）a821yx22．．yx2y2x．2xD．y(2,3,1)aba1，b）．339COM，，BC）．．D．23OMOAOBOC111111．222333OAa,OBb,OCcM是N2NB，，xyz）在CN112121，，233121，，233，，233．．．112，，233．22yy4kx2）．(1,1)．(2,2)．(1,2)．(2,1)2px(p0)3y2F（⊥线MM交lNyD3）xy2x2y4x2y8x2．y2．．．xy22x．1a2xRxmx10：：2xR4x4(m2)x102qpm．xy22FFP1951212F．12DP1DBP1ABCD当111111λ．:xx60:(1)(1)0xap是qpaA(2,5,1),B(2,2,4),C4,1)qxa2．与ACAB(k)(k)kABCDNA﹣11111B；1ABAB1114，22＝O是E是；Cy22px(p0)M(3,23)．FlBlx2y32F(1,0)1e:．ab232ClCBxM，MA·M9B0c>,2222>则>,22ab2.BAp,q将.1且y2xy3xy3x1且2.xypq故是..CnN,n≤22nA.PP(x,y)(4,0),(4,0)10FFFPF1212x2y22a10,a5,c4ac9以P1.9b222.A.p1142p0,x2y.24.B0xmm.xy2x2y221x0m1m24m2xy22142mmmm20m0，22m2m1..Ccbaa2cbab32x.y132aa.B.b1113b,a故a222.B.D,，.O0,0,0,A,B0,0,1,C.OAOBOCAOMM31MABCA.OAOBOCBOM于M61MABCB.11111332OMOAOBOC,,1M不CM222222ABCC.1111133OMOAOBOC,,1DM1M333面,B,C,MABC11111，由即31313331333,B,C,M..Cx,y,z将OA,OB,OC.MN111OBBCMNONOMOA232111211213x,y,z.3223323.Dy2(0,2)k0.k2(0,2)y2xyy4x2y2ykx21Dy得kxy4222y2x242221kx4kx8016k1k022x2y241k2k1..BMFMNF是等边三角形，根据中位线证得D是3NFMDp.FπMF3MNl3πMNMFMNFO是3BN//OD是NFMD3BFDπMNMFNF2ODF1,3p1p1y22x.22.2．.3ca.2c8,c420436,a6xa22c42.a6323.．(1,2).q∨p假mpqpppq∨mpqpm.:p,xRxq10为∨p假而pqp2mxq2m2m240.16m21601m3.2xR4x4(m2)x102m...FPF.122a6mn3,c2PF,PFna，m2nc21221n225m22FPF.2125.1(3以、DD，DCDA1DDBDPλDBλPA1111＝PD＋DAλλ，＝PD＋DC－PC1111λλλ1·PAPC231此λ(．3．[1,2].qq、中是对pxppqaxxx2x3或.x2x60得p:Ax|x2x或，∴(1)(1)>1或x>.∴x|1或x>}∵p是qABqp∴pq但，a12a12∴或，a13a131a21a21a2.或.a的取值范围是[1,2].或3.,AB,.k,kk.ABAC0(31301AB,，203311022AB与ACk(kkk(kk，(k)(k)∵，∴(k)(k)0，∴，3或3．∴k3.ABAB30．111BC2MN1D//BC.1ABAB111.D为x为y轴，为z1(2,0,0)C(0,2,0)，A(2,0,2)B(2,2,2)M(2,1,1)N(1,1,0)，，，．则∴∴，11(，BC(2,0,2)．1BC2MNBC//MN，11//BC即．1(2,0,0)B(2,2,2)，AB(0,2,2)1DC(0,2,0)，∴，．1m(x,y,z)，111·BC2x2z0,则即1·AB2y0,11x1,y0m(．z1令设ABAB，111|ABn||2|1|AB,n1则．22221ABn1∴ABAB111.7.7DOACDO平面ABC.OCAEDAEDAEC.22＝O是∴．∵，∴．．23＝O为x为y为z(2,0,0)，C(2,0,0)，B2则，D(0,0,2)E，，(((．，，n(x,y,z)，1112x2z·AD0,则令即11·AE0,2x3yz11133z11x1,yn(1,,1)．3311m．310(13mn73,n．mn171101337D-AE-CD-AE-C．7.y4x2xy10xy10或．pM.AB8xxl与当l与Fll的斜率，从而求得直线l.(3,23)2px得p2My2，4x．y24xy0F2与22lxAB，llxkyk(x1)．lyk(x1)由消kyx(2k4)xk0，2222y24x2k442x2∴x．12k2k24|xxp228∴k211．k12k2x1yx1或xy10xy10或．ly.xy22；1324(MA·Mx39a,babc222.9Mm.0x,l0AB设9,Bm.l4Mm.m93lll的99M.c31c，e3，∴a，a3∴bac2．222∴x2y21．329(Mm,x(3,0)B(3,0),0A,l则(m(mm23,43．m923323(1,)B(1,,),Al32323411则MAMB(1m,)(1m,)(1m)2,333924m,．m334．m349k(x1).m3ylyk(x1)(3k2)x6kxk60,由消y22222x3y622k2k62xx,xx,k2k21221224k2yyk(xxk[xx(xx).22k2121212122444(x,y)(x,y)xx(xx)yy33391122121212k646k4k9k622223.k23k29k2k2999222249(3xM.9,Bm.l4Mm.m93lll的99M.c31c，e3，∴a，a3∴bac2．222∴x2y21．329(Mm,x(3,0)B(3,0),0A,l则(m(mm23,43．m923323(1,)B(1,,),Al32323411则MAMB(1m,)(1m,)(1m)2,333924m,．m334．m349k(x1).m3ylyk(x1)(3k2)x6kxk60,由消y22