11.1501202.3.85401.cos300A32B12C12D322.1A1B21C31D613.y2sin()[043]f(3)0f(43)2()A.2BC2D44.mn,,mn//mn////mmm//n//mn////ABCD5.F1F2F3F1F260F1F224F3A.6B2C25D2726.x0axb1,x02axbxA1,2B,12,C1,2D,21,7.{an}a3a114a7{bn}a7b7b5b9()A2B4C8D168.xya224xyABOOAOBOAOBOAOBaA.2B.-2C.6-6D.2-265309.sin2yx4210.xy0,,4312.xyxxy11xy.11.2xy7=0CyA04B02C______.12.{an}nSn22nan_____13.p=(2,7)q=(x,3)pq[0,)2x.14.ABC2ADBADCBADC.6801512()sin2sin2cos2466fxxxx(1)fx(2)5ftan16.133EFPBACDABC,,ABC,,abc.2cos,sin22AAm,cos,2sin22AAn,1mn.(1)cosA(2)23a,2b,c.17141C2230xyDxEyC10xy2.C;2C224xy.l1,2PCAB||23ABl.18(14)PAABCDABCD,PA=AB=1AD=3FPBEBC.E-PADEBCEFPACEBCPEAF.19(13)98.12450(1)(2)268420(14)2()(1),()4(1)fxxgxx{}na12a1()()()0nnnnaagafa1{1}na211niian313()()nnnbfaga{}nb51055012345678CCDADBCD45209.cosyx10.5,111.22(2)(3)5xy12.10,1,2,2.nnn13.21,214.5680152sin2coscos246fxxx3sin2cos242sin246xxxks5u322655f3sin2cos2183sin21cos2223sincos2sinsin03tantan0tan31216(1):m2cos,sin22AA,ncos,2sin22AA,1mn,222cos2sin122AA.ks5u21cos2A.4(2):(1)1cos2A,0A,23A.6623a,2b,sinsinabAB,2322sinsin3B,1sin2B.80,BBA,6B.116CAB.2cb.13172230xyDxEyC(,)22DEC10xy,(,)22DE10xyD+E=22221224DE4C0,0DED=2,E=4C222430xyxy.72lx1xl3,13,132.9lx12xky02kykx.10d24232d1d1|2|12kk34k3450xy.123450xy1x1418:E-PAD1113()3326ADEVPASPAADAB=.ks5u47EBCEFPAC.PBCEFBCPBEFPCEFPACPCPACEFPAC.9:PAABCD,BEABCD,PAEB,,,EBABABAPAABAPPBE,EBPAB,AFPABBEAF.1PAAB,FPB,,PBAFPBBE=B,PB,BEPBE,AFPBE.PEPBE,AFPE.1419(1)xyy50x9812xx(x1)22x240x98y01051x1051x*3x17.6(2)yxyx2x98x4022x98x40122x98xx7127261109y2(x10)2102x10102101028110132011()()()0nnnnaagafa214()(1)(1)0nnnnaaaa1(1)(441)0nnnnaaaa10na14410nnnaaa212a10naks5u314410nnnaaa1431nnaa11431nnaa131(1)4nnaa{1}na111a34521431nnaa13144nnaa2n13144nnaa81113111344114nnnnaaaa2n{1}na111a3421{1}na111a34131()4nna13()14nna72113331()()444nniian3[1()]344[1()]3414nnnn9,nN33()44n3311()1444n34[1()]14nnn11niian10313()()nnnbfaga213(1)4(1)nnnbaa12333[()]4()44nnnb121333{[()]()}44nn1113()4nu01u23()nbuu2113[()]24u2113[()]24nbu1[,1]21(0,)2121n1u2n34u3n239()416u4n2764u27641931216412719||||2642163n,nb{}nb23991893[()]1616256b131n1unb{}nb13(11)0b14