v sd cmo DUC - DAo r4o ruAr siNu *{ * *s;{< * Legssirylrsttlqi fnAN I Tr:ic nghidm khr{ch quan {2 ui6n'r) Chorc cdu trd ldi drtng vd ghi ket qua vdo bdi ldrn KIEM TRA CI{AT LUQNG r{ec ri I _ r_Op g Ndm hoc 2?07-20CI5 - MON TcAN (Thdi gian ldnt bdi l2$ phitt) 8,z'JE c.2 D, *-2 Ndu durrng thing y - ax + -5 di qua clidm {-l; 3i thi h0 sd gdc cria nd bang: B, -l L' "'Z r-1 ', Tr*ng hinh 1; sin 300 bhng: B, 2{t2 .F[mh t Ciu 4 Q,5 didmt Dudng trbn 1l hinh: D.+ {J CAu tr {0,5 didm) A. ,D CAu ? (0,5 diiim) A, I Cflu 3 (A,5 di{m) !; ,r lja ra" 2 C. '2a A, Cd mdt t8m cldi xfmg C, C6 hai tam ddi xung PLAN II Tu luan {s iliimi Gi6 tri cua tridu thr?c -=l-* -=1 urng, Jz +t .lz t B, Khdng c6 tflm ddi xrrng D. C6 v;3 sd tAm.ddi xring r; {-J a cho bidu thirc P =( ; +l ,( 9=.i - t) (Ja-z "'oJ['!a-"2 F a. Tim didu ki0n xiic dinh vb rft gon bidu thfc P. b. Tirn gir{ tri c&a P bidt c =3+2Ji - Biri2 (2,5 didm) Cho hhm sd bac nhftt y : if *.fi ) " - r a. F{hm sd tren ld tldng bidn hay nghich bidn tr€n R? Vi san? b. T'inh gi6 tri cfra Y khi x = 1+ ".,6 . c"Xi{cdlnhhhrnsdbQenhaty:ffi*b,bidtddttricfiahamsdsongsongvdidudng thf,ngy :1r 6)t-l vh rli qua didm (-t; fi l" Bni 3 (J didm) Cho dudng trdn (O), bin kfuh R = 6 cm vh didnr f :e-ch O mOJ khging^ 10 cm" Tt A v€ tiep tuydn A,B (B ld ti6p ditirn) vh cdt tuyen ba't ki ACD (C vi D lh hai giao didm ctra cdt tuydn vh duinrg rdn). Gqi I lh trung didm ctra doan CD. a" Tinh df, dli doan tidP tuYdn AB. b. Khi C chay tren duong trbn (O) thi I ch4y tr6ndydng nho? c. Chrlng rninn rnng ticn-aC.eb i.hOng Odifcni C thay ddi tren dudng trbn (O)' Bni 4 p,5 didm) (x-v>0 | '' Cho J .4 tif+vs - t"5 ** :!a+21 I "lu +I ) fim gi6 tri nhil nhfit cfia bitiu thfc,S : x*, * l** xy . bidu thirc P =( ; +l ,( 9= .i - t) (Ja-z "'oJ['!a-"2 F a. Tim didu ki0n xiic dinh vb rft gon bidu thfc P. b. Tirn gir{ tri c&a P bidt c =3+2Ji. t8m cldi xfmg C, C6 hai tam ddi xung PLAN II Tu luan {s iliimi Gi6 tri cua tridu thr?c -=l-* -=1 urng, Jz +t .lz t B, Khdng c6 tflm ddi xrrng D. C6 v;3 sd tAm.ddi xring r; {-J. siNu *{ * *s;{< * Legssirylrsttlqi fnAN I Tr:ic nghidm khr{ch quan {2 ui6n'r) Chorc cdu trd ldi drtng vd ghi ket qua vdo bdi ldrn KIEM TRA CI{AT LUQNG r{ec ri I _