De tuyen sinh 10 Long An 20152016

<span class='text_page_counter'>(1)</span>sO. rd rnr. crlo DUc vA uio r.so. rwtN srNlr r,6p ro xi.m HQC 2015-2016. M6n thi:. LONG AN. toAx (coNc,r"ar). Ngiy thit 17/0612015. Cfiu L: 1e ai6ml Bt{ 1:'Rrit ggn c6c biAu thtic sau (finhbdy r5 c6c bu6o bi6n d6i):. +tJii ^l zJn'sJn -+J[ b). [,.7.f]. l,-Wl. r vo, aao,a+l). '[/ -$$. =6 BAi 2: Giii phuong trinh: ai6m; Cao 2: 1z Cho cdc hnm s6 €): y= -.x2 vi (d): y =2x'3 a) V6 ed tni cira hai him s5 dd cho tr6n cirngm6t rn6t phing tqade, Ocy. b) Tim tqa d0 giao di6m cria hai-db thitr€n b[ng ph6p ti']h '. .j Vi6t pn"*g trint duhng tlrarg (dl: y ax +.b, bi6t iine @) song song v6i (d) cit trqrc nrng tpi di6m c6 tune d0 bEng-4.. :. Cffu3:(2ili6m) a) GiAi phuong trlnh sau (kh1ng gidi b) Gi6i hQ phuong'trinh. sau (kh6ng. bEng mdy tinh. cim tay). vd'(dl. :. gtdi biing may tinh cAm tay). :. [2x+3Y =3. l*- Y=4. c) Cho phuorg tinh: x2 - 2x + 2m-1 = 0 (v6i m 1B tham s5 ra "phuemgjttinh;6 hai nghiQm r,,xrthda mdn: rfx, *xrx| =-6. CAu 4: (4 tli6m). r. H 8n s6).. tim. 8i6. tri. ctn m. &6. Eai 1:(1 ili6m) _ffi. :8 cm.Tinb tam gi6c ABC vudngt?L A , AH lh dulng ca.o (F/ e BC) c6 BC = l0 cm, AC dO dni AB , BH;es6 do goc C itd ao g6q C lim trdn d6n d0). Bni 2: (3 ,a Cho ntra dudns trdn t6m O du&ng kinh AB. I-6y Ai6m C.tr6n dubng theng lB sao.cho B nim li ti6p di6m), tia CK o8t tia tii5p tuy6n eiaa A, C. Ke ti6p tuyEn CK v6i nfta duong trdn t6m o,i, Aumg trbn t6m O t*i D ( tia tiiip tuy6n Ax nim tr6n nrla m{t phing bb AB chira n&a du&ng trdntAm O). Chimg minh tir gi[c AOKD 1* tir gi6c n$i ti6p, Xic dinh t6m cira duimg trbn ngopi S6p. di6m). lx. I $. [i,. t,. "i giirc AOKD.. b) Ch{me minh: CO.CA=CKZ c) K6 ON. IAB( NthuQc. dopn. +CK"DK. th[ng CD). Chims minh. nn n) ,*-*=t' DN CN. - Gidm thi khdns gidi thfch gi tfiAm. - HS drgc s* dyng mdy tinh trang danh muc cho phdp' S6 nao danh: IIg vir tbn thi sinf,: .............']....'....,.....r Chfr ki gi6m thi 2: Chft ki girflm thi 1: ......'.,.........,y"'e """'. '.

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