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Trang 1saGIA ODVC vA DAo T~O
DE CHiNH THUC
(D€ thico 01 trang)
KY THI TUYEN SINH LoP 10 THPT
NA M H<}C 201~ - 2013 MONTOAN
lMa d~Oll
Can 1(2 di8m)
5 a) True din thirc 6 m~u cua bieu thirc:
/6-1'
b) G·•· h"iai ~ p uong trth lnh: {2X - Y = 7.
x+2y=1
Can 2 (2 di8m)
Cho bieu thuc: P = ( Fa - - Fa.). 2 voi a> 0 va a :;t 1
a-I a- a a a) Rut gon bieutlnrc P.
b) VOL gia tri nao cua a thi P = 3
Can 3 (2 dL8m)
a) Trong m~t phang toa dQ Oxy, duong th~ng y =ax +b di qua di8m M (-1; 2)
va song song voi duong thing y =2x + 1 Tim a va b
b) GQi x, va x21a hai nghiem cua phirong trinh: X2 + 4x - m2 - 5m =O
Tim cac gia tr] cua m sao cho [x, - x21 =4
Can 4 (3 di8m)
Cho tam giac ABC co ba goc nhon, nQi ti~p duong trim tam O Hai duong cao
AD, BE c~t nhau tai H (DEBC, E E AC)
a) Chung minh illgiac ABDE nQi ti~p duong tron
b) Tia AO c~t dirong tron (0) tai K (K khac A) Chirng minh illgiac BHCK la
hinh binh hanh,
c) GQi F la giao di8m cua tia CH voi AB Tim gia tri nho nhat cua bieu tlnrc :
AD BE CF Q=-+-+-
HD HE HF
Can 5 (1di8m)
Tim tAt ca cac gia tri cua tham s6 m d8 phirong trinh sau vo nghiem:
x2-4x-2mlx-21-m+6 = O
H~t
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- Thi sinh khong duoc su dung tai lieu
- Giam thi khong giai thich gi them
H(Jva ten thl sinh: ; tf 1 o /t ti W I! IJ M bdo danh: 1.l !! J£'«,