第I卷（選擇題)5x2y2（a0b0，62，a2b236B）9a,b.b2162262ca2a6a2b2c2a3,b3,c32.x2y2(1,2)0b025，，（aa2b2）x2y2x2y2xy22．y1．x1．1．12244416164Bbc252，.ax2y2a2b210b025，2255.（ac，cby2(1,2)2a1,b2x21.B4a.x2y2ya2b23）±x23．2．423Bbx2y23x3a2b21(0,0)yabacbe1()2aabx2y2Q331(0,0)yabx，，a2b2acbe1()22．a(chǎn)ab3ay2x1F，F(xiàn)2P312FPF120FPF，）1212．233C25．5．．B,nmn2a2.由1,b3,c2a設(shè),12FPF120FPF2:FF222在1212121212.y2,n1a1,b3,c2QQx2,,設(shè),P312——①mn2a2FPF120FPF在:由12121FF12222故22mn2221212:16mnmn——,mn422112SPFPFsinsin1203FPF1FPF1mn22122FPF12.x2y2x2y2C：C：142a2b2FFMC12222線CCC）12248C'b'211425x2y2cFc:1e1CC164''221aabcbcbbxFM2c2b2a2的yOMabca221面積為16ab21632c5abc8,4,45aba2bc22a216xy22:1a0,b0a2b2y8xC23xy0CC）x2y2．y1．x12233xyxy2222．14．1124B.cy28x23x,即y30xyb1a3bay231Bx2故故ab33ab422.x2y2FF1(a0,b0)F的C:121a2b2ABF與C、BC）l2233．34．7．BQVABF2ABBFAFmFAFAFAABFBa,A221211BFBF2a,BF4a,FFcABFFBFnFBF,,由在中B21212212124c4a16a22a4acos120c7ae77B,,2,e22222yk0x2y2,Ba2b210,0ab以F4a235．．．22Da與.bFAFB90Qo1b2SSS45255又Sbacae2e2222tan45oDa,c.x2y2FF1a0,b012a2b294PFPFb，PFPFab3P）121245394．．．3Bb4.a3x2y2b又所a2b21a0,b0aP1212以PF2294PFPFPFb4a4b4a2222PFPFab,121212122134bbbab9abb4a即9940或22a3aa453cabb22222e211ea39aa22.y2x1C：2P31(x2)y4(x2)y1|PM||PN|C：2）2222M,N225A432y21F(2,0)F(2,0)，PF，x23121PFFM，，F(xiàn)N221(2,0)r21，:(x2)y4C:(x2)y1(2,0)C222212y2r121F(2,0)F(2,0)PFPFFM，x2，，，F(xiàn)N，2312121|||2|2|)|)|2|22r212r221212||||3||||3221212122a|||3||22c32435P1212．Ay2FFx1、P2312FPF120FPF|PA（x，A）121235552555．．．．5Brr412SSSrr25，，F(xiàn)F212121rr(rr)PA.1212|PFr,|PFrrr2a2P112212|FF||PF||PF|2|PF||PF|cosP|FFc213422212121212rrrr16(rr)rrrr4rrrr2rr4252222,2122112121212121211P1PSrrsinPSSrPAsinrPAsinrr(rr)PA22222F12F2121212121rr4255B12rr2512.FF，P1213eFPFe（）1e2e2312212．1D2．．．42x2y2x2y21，1a,bab,i，abab112222ii1122,nn2a,nm2a0，F(xiàn)PFa12b2a2b2c2cm，3122121212FPF22cosmnmnc2.在22312x2y2x2y21，1a,bab,i，abab112222ii1122mnanma2,20a12b2a2b2c2，c,n1221212maa,naa,由FPFFPF2cmn2mncos222，3312121212134caaaaaaaa22caa222D22e21212121212e12.第II卷45y(4,1)y2x211234y(4,1).x22x2y04y(4,1)12x22.yy22xx2211.1231234yx22.x2y12m3yx3bx,xy.ax2y1x2m3bxyy．3a.x2y21a0,b0a2b2bx9aFF為，AFFyA12a1212ac7ac|12221bayxcosAFF.a12cac7ac|||2a|||9ac,|，22212121bbaacxtanAFFcosAFFy1a1212|AF|4c|AF|1184e4e2a222cosAFF2或即22e80ee122|AF|2c14e4e212ce1e4..x2a2y2b2ab1(0,0)，F(xiàn)，F(xiàn)12M(a,0)N(0,b)，MNP12SPFF2S，S2121S1a，，cbc22,33()abaMNyxa，ec